{"id":71315,"date":"2026-09-11T18:46:38","date_gmt":"2026-09-11T09:46:38","guid":{"rendered":"https:\/\/kinsta.com\/jp\/?p=71315&#038;preview=true&#038;preview_id=71315"},"modified":"2026-09-11T19:52:44","modified_gmt":"2026-09-11T10:52:44","slug":"this-site-cant-be-reached","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/","title":{"rendered":"\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b5\u3064\u306e\u65b9\u6cd5"},"content":{"rendered":"\n<div  class=\"featured-snippet\" id=\"featuredSnippet\">\n    <div class=\"featured-snippet__content\">\n        <h2>\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5<\/h2>\n        <div><ol class=\"wp-block-kinsta-table-of-contents__list is-style-decimal\">\n<li data-section-id=\"11mkyyd\" data-start=\"29\" data-end=\"136\"><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/#1-restart-your-internet-connection\" target=\"_new\" rel=\"noopener\" data-start=\"32\" data-end=\"136\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3092\u518d\u8d77\u52d5\u3059\u308b<\/a><\/li>\n<li data-section-id=\"pz2fpd\" data-start=\"137\" data-end=\"256\"><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/#2-disable-your-firewall-and-antivirus\" target=\"_new\" rel=\"noopener\" data-start=\"140\" data-end=\"256\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3092\u7121\u52b9\u306b\u3059\u308b<\/a><\/li>\n<li data-section-id=\"dpw4tg\" data-start=\"257\" data-end=\"356\"><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/#3-clear-your-browser-cache\" target=\"_new\" rel=\"noopener\" data-start=\"260\" data-end=\"356\">\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u524a\u9664\u3059\u308b<\/a><\/li>\n<li data-section-id=\"1tgllrx\" data-start=\"357\" data-end=\"451\"><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/#4-flush-your-dns-cache\" target=\"_new\" rel=\"noopener\" data-start=\"360\" data-end=\"451\">DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b<\/a><\/li>\n<li data-section-id=\"1we1x8l\" data-start=\"452\" data-end=\"547\" data-is-last-node=\"\"><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/this-site-cant-be-reached\/#5-change-your-dns-servers\" target=\"_new\" rel=\"noopener\" data-start=\"455\" data-end=\"547\" data-is-last-node=\"\">DNS\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4\u3059\u308b<\/a><\/li>\n<\/ol>\n<\/div>\n    <\/div>\n    <div class=\"featured-snippet__footer\">\n        <div class=\"arrow-down\"><\/div>\n        <div class=\"featured-snippet__footer--content row nocol middle-xs between-xs reverse\">\n            <div style=\"margin-left: auto; position: relative; top: -1px\" class=\"row nocol middle-xs\">\n                <div class=\"color--mediumGray\" style=\"font-size: 14px; vertical-align: middle;\">\n                    <svg  class=\"icon icon--logo display--block\" aria-hidden=\"true\" focusable=\"false\"><use xlink:href=\"https:\/\/kinsta.com\/jp\/wp-content\/themes\/kinsta\/dist\/sprite.svg?v=d7c088ac459b9cbb2e19b989209c747b#logo\" \/><\/svg>                <\/div>\n                <div class=\"text--bold color--mediumGray\" style=\"padding-left: 3px;\">Support<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-5\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&#038;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-5\" data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-5\" data-testid=\"conversation-turn-22\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content>\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&#038;]:mt-1\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"30c54621-3a23-4b3d-851c-e4e35793156c\" data-message-model-slug=\"gpt-5-6\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"fbskMG_root yWcLfW_streamingContainer markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"173\">\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u3068\u3001\u6642\u6298\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/error-404-not-found\/\" target=\"_new\" rel=\"noopener\" data-start=\"30\" data-end=\"95\">404\u30a8\u30e9\u30fc<\/a>\u306e\u3088\u3046\u306b\u539f\u56e0\u304c\u308f\u304b\u308a\u3084\u3059\u3044\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u306e\u3088\u3046\u306b\u3001\u4f55\u304c\u554f\u984c\u306a\u306e\u304b\u3001\u3069\u3046\u5bfe\u51e6\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u308f\u304b\u308a\u306b\u304f\u3044\u30a8\u30e9\u30fc\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"175\" data-end=\"274\">Google Chrome\u3067\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u539f\u56e0\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u539f\u56e0\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u5bfe\u51e6\u6cd5\u3092\u9078\u3073\u3001\u76ee\u7684\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"276\" data-end=\"329\" data-is-last-node data-is-only-node>\u4eca\u56de\u306f\u3001\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u3092\u53d6\u308a\u4e0a\u3052\u3001\u767a\u751f\u539f\u56e0\u30685\u3064\u306e\u89e3\u6c7a\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u539f\u56e0<\/h2>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"32\" data-end=\"123\">\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u5384\u4ecb\u306a\u306e\u306f\u3001Chrome\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3067\u306f\u539f\u56e0\u3092\u7279\u5b9a\u3057\u306b\u304f\u3044\u70b9\u306b\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u3055\u307e\u3056\u307e\u306a\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3068\u3068\u3082\u306b\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"125\" data-end=\"251\" data-is-last-node data-is-only-node>\u305f\u3068\u3048\u3070\u3001<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/dns_probe_finished_nxdomain\/\" target=\"_new\" rel=\"noopener\" data-start=\"130\" data-end=\"216\">DNS_PROBE_FINISHED_NXDOMAIN\u30a8\u30e9\u30fc<\/a>\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure id=\"attachment_71332\" aria-describedby=\"caption-attachment-71332\" style=\"width: 1450px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-71332 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example.png\" alt=\"DNS_PROBE_FINISHED_NXDOMAIN \u30a8\u30e9\u30fc\" width=\"1450\" height=\"738\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example.png 1450w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example-300x153.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example-1024x521.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example-768x391.png 768w\" sizes=\"auto, (max-width: 1450px) 100vw, 1450px\" \/><figcaption id=\"caption-attachment-71332\" class=\"wp-caption-text\">DNS_PROBE_FINISHED_NXDOMAIN \u30a8\u30e9\u30fc<\/figcaption><\/figure><\/figure>\n<p>\u63a5\u7d9a\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u305f\u5834\u5408\u3084\u3001<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/err_connection_reset\/\" target=\"_new\" rel=\"noopener\" data-start=\"15\" data-end=\"84\">ERR_CONNECTION_RESET\u30a8\u30e9\u30fc<\/a>\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306b\u3082\u3001\u540c\u3058\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure id=\"attachment_71333\" aria-describedby=\"caption-attachment-71333\" style=\"width: 1452px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-71333 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example2.png\" alt=\"\u63a5\u7d9a\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u305f\u5834\u5408\u306e\u30a8\u30e9\u30fc\u753b\u9762\" width=\"1452\" height=\"832\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example2.png 1452w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example2-300x172.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example2-1024x587.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2026\/09\/site-cant-be-reached-example2-768x440.png 768w\" sizes=\"auto, (max-width: 1452px) 100vw, 1452px\" \/><figcaption id=\"caption-attachment-71333\" class=\"wp-caption-text\">\u63a5\u7d9a\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3057\u305f\u5834\u5408\u306e\u30a8\u30e9\u30fc\u753b\u9762<\/figcaption><\/figure><\/figure>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Chrome\u3067\u306f\u3055\u307e\u3056\u307e\u306a\u30a8\u30e9\u30fc\u306b\u5bfe\u3057\u3066\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u4e3b\u306a\u539f\u56e0\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-8\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&#038;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-8\" data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-8\" data-testid=\"conversation-turn-28\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content>\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&#038;]:mt-1\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"6ac74677-7900-49b0-8b84-2d5327d10d80\" data-message-model-slug=\"gpt-5-6\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"fbskMG_root yWcLfW_streamingContainer markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<ul>\n<li><a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/what-is-dns\/\" target=\"_new\" rel=\"noopener\" data-start=\"81\" data-end=\"137\">\u30c9\u30e1\u30a4\u30f3\u30cd\u30fc\u30e0\u30b7\u30b9\u30c6\u30e0\uff08DNS\uff09<\/a>\u306e\u540d\u524d\u89e3\u6c7a\u30a8\u30e9\u30fc<\/li>\n<li data-section-id=\"1dhnd7y\" data-start=\"146\" data-end=\"157\">\u63a5\u7d9a\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8<\/li>\n<li data-section-id=\"q0930o\" data-start=\"158\" data-end=\"172\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306e\u554f\u984c<\/li>\n<li data-section-id=\"13shhzv\" data-start=\"173\" data-end=\"206\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u307e\u305f\u306f\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u8a2d\u5b9a\u30df\u30b9<\/li>\n<\/ul>\n<p data-start=\"208\" data-end=\"267\" data-is-last-node data-is-only-node>Chrome\u306e\u30a8\u30e9\u30fc\u753b\u9762\u306b\u3082\u3044\u304f\u3064\u304b\u306e\u5bfe\u51e6\u6cd5\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u8a66\u305b\u308b\u65b9\u6cd5\u306f\u307b\u304b\u306b\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\"><\/div>\n<div class=\"mt-3 w-full empty:hidden has-[&gt;_:empty]:hidden\">\n<div class=\"text-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<h2>\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b5\u3064\u306e\u65b9\u6cd5<\/h2>\n<p>\u3053\u3053\u304b\u3089\u306f\u3001\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b5\u3064\u306e\u65b9\u6cd5\u3092\u3001\u7c21\u5358\u306a\u3082\u306e\u304b\u3089\u9806\u306b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306e\u78ba\u8a8d\u304b\u3089\u59cb\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>1. \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3092\u518d\u8d77\u52d5\u3059\u308b<\/h3>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"24\" data-end=\"142\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u3066\u3044\u3066\u3082\u3001\u63a5\u7d9a\u306b\u4f55\u3089\u304b\u306e\u554f\u984c\u304c\u3042\u308b\u3068\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u62cd\u5b50\u629c\u3051\u3059\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30eb\u30fc\u30bf\u30fc\u3084\u30e2\u30c7\u30e0\u3092\u518d\u8d77\u52d5\u3059\u308b\u3060\u3051\u3067\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"144\" data-end=\"292\">\u63a5\u7d9a\u306e\u518d\u8d77\u52d5\u306f\u901a\u5e38\u30011\u301c2\u5206\u7a0b\u3067\u5b8c\u4e86\u3059\u308b\u305f\u3081\u3001\u307e\u305a\u306f\u3053\u3061\u3089\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u591a\u304f\u306e<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/what-is-isp\/\" target=\"_new\" rel=\"noopener\" data-start=\"186\" data-end=\"248\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff08ISP\uff09<\/a>\u3067\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u96fb\u6e90\u30b1\u30fc\u30d6\u30eb\u3092\u629c\u304d\u30011\u5206\u307b\u3069\u5f85\u3063\u3066\u304b\u3089\u518d\u3073\u63a5\u7d9a\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p data-start=\"294\" data-end=\"348\" data-is-last-node data-is-only-node>\u30eb\u30fc\u30bf\u30fc\u304c\u8d77\u52d5\u3057\u305f\u3089\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u304c\u5fa9\u65e7\u3059\u308b\u307e\u3067\u5f85\u3061\u3001\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u30b5\u30a4\u30c8\u306b\u518d\u5ea6\u30a2\u30af\u30bb\u30b9\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>2. \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3092\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"33\" data-end=\"222\">OS\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308b<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/what-is-a-firewall\/\" target=\"_new\" rel=\"noopener\" data-start=\"43\" data-end=\"98\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/a>\u3084\u4f7f\u7528\u3057\u3066\u3044\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30bd\u30d5\u30c8\u306b\u3088\u3063\u3066\u3001\u7279\u5b9a\u306e\u30da\u30fc\u30b8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3001\u63a5\u7d9a\u3067\u304d\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u539f\u56e0\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3092\u4e00\u6642\u7684\u306b\u7121\u52b9\u306b\u3057\u3066\u3001\u3082\u3046\u4e00\u5ea6\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p data-start=\"224\" data-end=\"275\">OS\u306b\u3088\u3063\u3066\u3001\u6a19\u6e96\u642d\u8f09\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u624b\u9806\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul data-start=\"277\" data-end=\"654\">\n<li data-section-id=\"jpadlf\" data-start=\"277\" data-end=\"430\"><a class=\"decorated-link\" href=\"https:\/\/support.microsoft.com\/en-us\/windows\/turn-microsoft-defender-firewall-on-or-off-ec0844f7-aebd-0583-67fe-601ecf5d774f\" target=\"_new\" rel=\"noopener\" data-start=\"279\" data-end=\"430\">Windows\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u65b9\u6cd5<\/a><\/li>\n<li data-section-id=\"1ocuq5v\" data-start=\"431\" data-end=\"654\"><a class=\"decorated-link\" href=\"https:\/\/sites.google.com\/site\/1applecustomer\/how-to-disable-firewall-on-mac#:~:text=%C2%B7%20Turning%20off%20Firewall%20on%20Mac%20OS%20X%20version%2010.4,on%20Stop%20button%20disable%20Firewall.\" target=\"_new\" rel=\"noopener\" data-start=\"433\" data-end=\"654\">macOS\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u7121\u52b9\u306b\u3059\u308b\u65b9\u6cd5<\/a><\/li>\n<\/ul>\n<p data-start=\"656\" data-end=\"770\">\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3092\u7121\u52b9\u306b\u3059\u308b\u65b9\u6cd5\u306f\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u30bd\u30d5\u30c8\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u306f\u3001\u30a2\u30af\u30bb\u30b9\u5148\u306e\u30b5\u30a4\u30c8\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u554f\u984c\u304c\u306a\u3044\u9650\u308a\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u3088\u3063\u3066\u30b5\u30a4\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u30b1\u30fc\u30b9\u306f\u305d\u308c\u307b\u3069\u591a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p data-start=\"772\" data-end=\"848\" data-is-last-node data-is-only-node>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u30a6\u30a4\u30eb\u30b9\u5bfe\u7b56\u30bd\u30d5\u30c8\u3092\u7121\u52b9\u306b\u3057\u3066\u3082\u554f\u984c\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u306b\u79fb\u308a\u307e\u3057\u3087\u3046\u3002\u306a\u304a\u3001\u4e21\u65b9\u3068\u3082\u5fd8\u308c\u305a\u306b\u518d\u5ea6\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>3. \u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b<\/h3>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"24\" data-end=\"139\">\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3059\u308b\u3068\u3001Chrome\u306b\u306f\u30a2\u30af\u30bb\u30b9\u3057\u305f\u30b5\u30a4\u30c8\u306e\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u3084\u30d5\u30a1\u30a4\u30eb\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30d5\u30a1\u30a4\u30eb\u306f\u30ed\u30fc\u30ab\u30eb\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u308b\u305f\u3081\u3001\u540c\u3058\u30b5\u30a4\u30c8\u3092\u8a2a\u308c\u308b\u305f\u3073\u306b\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p data-start=\"141\" data-end=\"282\">\u3053\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u3001\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u306f\u3001<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/how-to-clear-browser-cache\/\" target=\"_new\" rel=\"noopener\" data-start=\"205\" data-end=\"273\">\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2<\/a>\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p data-start=\"284\" data-end=\"363\" data-is-last-node data-is-only-node>Chrome\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u300c<strong>\u8a2d\u5b9a<\/strong>\u300d\uff1e\u300c<strong>\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>\u300d\uff1e\u300c<strong>\u95b2\u89a7\u5c65\u6b74\u30c7\u30fc\u30bf\u3092\u524a\u9664<\/strong>\u300d\u306b\u79fb\u52d5\u3057\u3001\u300c<strong>\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u753b\u50cf\u3068\u30d5\u30a1\u30a4\u30eb<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure id=\"attachment_65106\" aria-describedby=\"caption-attachment-65106\" style=\"width: 1306px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-65106 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache.png\" alt=\"Chrome\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u753b\u50cf\u3068\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664\" width=\"1306\" height=\"1306\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache.png 1306w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache-300x300.png 300w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache-1024x1024.png 1024w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache-150x150.png 150w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2023\/04\/chrome-clear-cache-768x768.png 768w\" sizes=\"auto, (max-width: 1306px) 100vw, 1306px\" \/><figcaption id=\"caption-attachment-65106\" class=\"wp-caption-text\">Chrome\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u753b\u50cf\u3068\u30d5\u30a1\u30a4\u30eb\u3092\u524a\u9664<\/figcaption><\/figure><\/figure>\n<p>\u300c<strong>\u30c7\u30fc\u30bf\u3092\u524a\u9664<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3001Chrome\u3067\u306e\u51e6\u7406\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f85\u3061\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u5148\u307b\u3069\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u30b5\u30a4\u30c8\u3092\u518d\u8aad\u307f\u8fbc\u307f\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>4. DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3059\u308b<\/h3>\n<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-13\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&#038;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-13\" data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-13\" data-testid=\"conversation-turn-38\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content>\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&#038;]:mt-1\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"a9d9a566-0e8d-448b-8bf5-6d23e19c18ba\" data-message-model-slug=\"gpt-5-6\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"fbskMG_root yWcLfW_streamingContainer markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"98\" data-end=\"318\">OS\u306b\u306f\u3001\u30a2\u30af\u30bb\u30b9\u3057\u305f\u30b5\u30a4\u30c8\u306b\u95a2\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u60c5\u5831\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u3072\u3068\u3064\u304c\u3001\u30b5\u30a4\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u4fdd\u5b58\u3059\u308b\u300cDNS\u30ad\u30e3\u30c3\u30b7\u30e5\u300d\u3067\u3059\u3002DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u3042\u308b\u3053\u3068\u3067\u3001\u30b5\u30a4\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3073\u306b\u30d6\u30e9\u30a6\u30b6\u304c<a class=\"decorated-link\" href=\"https:\/\/kinsta.com\/jp\/blog\/what-is-dns\/\" target=\"_new\" rel=\"noopener\" data-start=\"202\" data-end=\"249\">DNS\u30b5\u30fc\u30d0\u30fc<\/a>\u3092\u4ecb\u3057\u3066\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3092\u8abf\u3079\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u4ed5\u7d44\u307f\u3068\u3057\u3066\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u4fdd\u5b58\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u304c\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"320\" data-end=\"413\">DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u3063\u3066\u30b5\u30a4\u30c8\u3078\u306e\u63a5\u7d9a\u3092\u52b9\u7387\u5316\u3067\u304d\u307e\u3059\u304c\u3001\u53e4\u3044\u60c5\u5831\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3068\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u3001DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u3066\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p data-start=\"415\" data-end=\"533\">DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30af\u30ea\u30a2\u306f\u3001\u6bd4\u8f03\u7684\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<a href=\"https:\/\/kinsta.com\/jp\/blog\/flush-dns\/\">\u4e3b\u8981\u306aOS\u3068\u30d6\u30e9\u30a6\u30b6\u3067\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p data-start=\"535\" data-end=\"607\" data-is-last-node data-is-only-node>DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u3066\u3082\u554f\u984c\u304c\u89e3\u6c7a\u3057\u306a\u3044\u5834\u5408\u306f\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\"><\/div>\n<div class=\"mt-3 w-full empty:hidden has-[&gt;_:empty]:hidden\">\n<div class=\"text-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<h3>5. DNS\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4\u3059\u308b<\/h3>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"21\" data-end=\"128\">\u901a\u5e38\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306b\u4f7f\u7528\u3059\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff08ISP\uff09\u306b\u3088\u3063\u3066\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u8a2d\u5b9a\u3092\u5909\u66f4\u3057\u3066\u3001\u7279\u5b9a\u306eDNS\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p data-start=\"130\" data-end=\"209\" data-is-last-node data-is-only-node>Windows\u3067\u306f\u3001\u300c<strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb<\/strong>\u300d\uff1e\u300c<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8<\/strong>\u300d\uff1e\u300c<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u5171\u6709\u30bb\u30f3\u30bf\u30fc<\/strong>\u300d\u306b\u79fb\u52d5\u3057\u3001\u300c<strong>\u30a2\u30c0\u30d7\u30bf\u30fc\u306e\u8a2d\u5b9a\u306e\u5909\u66f4<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1122px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" title=\"Changing your network adapter settings\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2021\/06\/change-adapter-settings.png\" width=\"1122\" height=\"363\"><figcaption class=\"wp-caption-text\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c0\u30d7\u30bf\u306e\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3002<\/figcaption><\/figure><\/figure>\n<p>\u6b21\u306e\u753b\u9762\u3067\u3001\u73fe\u5728\u4f7f\u7528\u3057\u3066\u3044\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3092\u53f3\u30af\u30ea\u30c3\u30af\u3057\u3001\u300c<strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u8868\u793a\u3055\u308c\u305f\u4e00\u89a7\u304b\u3089\u300c<strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30d7\u30ed\u30c8\u30b3\u30eb \u30d0\u30fc\u30b8\u30e7\u30f3 4\uff08TCP\/IPv4\uff09<\/strong>\u300d\u3092\u9078\u629e\u3057\u3001\u518d\u5ea6\u300c<strong>\u30d7\u30ed\u30d1\u30c6\u30a3<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 965px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" title=\"Changing your active connection's properties\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2021\/06\/ipv4-properties.png\" width=\"965\" height=\"497\"><figcaption class=\"wp-caption-text\">\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u63a5\u7d9a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5909\u66f4\u3059\u308b\u3002<\/figcaption><\/figure><\/figure>\n<p>\u65b0\u3057\u3044\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u3001DNS\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u624b\u52d5\u3067\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u306b\u3042\u308b2\u3064\u306e\u5165\u529b\u6b04\u306b\u3001\u4f7f\u7528\u3059\u308bDNS\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 904px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" title=\"Modifying your DNS server settings\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2021\/06\/custom-dns-server.png\" alt=\"Modifying your DNS server settings via Window's Internet Protocol Version 4 options window\" width=\"904\" height=\"460\"><figcaption class=\"wp-caption-text\">DNS\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u5909\u66f4\u3002<\/figcaption><\/figure><\/figure>\n<p data-start=\"0\" data-end=\"155\">\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3067\u306f\u3001Google\u306e\u30d1\u30d6\u30ea\u30c3\u30afDNS\u3067\u3042\u308b\u300c<strong>8.8.8.8<\/strong>\u300d\u3068\u300c<strong>8.8.4.4<\/strong>\u300d\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u307b\u304b\u306b\u3082\u3001\u5229\u7528\u3067\u304d\u308b\u512a\u308c\u305f<a class=\"decorated-link\" href=\"https:\/\/www.lifewire.com\/free-and-public-dns-servers-2626062\" target=\"_new\" rel=\"noopener\" data-start=\"73\" data-end=\"147\">\u7121\u6599\u306eDNS\u30b5\u30fc\u30d0\u30fc<\/a>\u306f\u591a\u6570\u3042\u308a\u307e\u3059\u3002<\/p>\n<p class=\"yWcLfW_streamingTextBlock\" data-start=\"157\" data-end=\"242\" data-is-last-node data-is-only-node>macOS\u3067\u306f\u3001\u300c<strong>\u30b7\u30b9\u30c6\u30e0\u8a2d\u5b9a<\/strong>\u300d\uff1e\u300c<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong>\u300d\u306b\u79fb\u52d5\u3057\u3066\u4f7f\u7528\u4e2d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u9078\u629e\u3057\u3001\u300c<strong>\u8a73\u7d30<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068DNS\u8a2d\u5b9a\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u7d9a\u3044\u3066\u300c<strong>DNS<\/strong>\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure id=\"attachment_71327\" aria-describedby=\"caption-attachment-71327\" style=\"width: 732px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-71327 size-full\" src=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mac-system-setting-dns.png\" alt=\"macOS\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306b\u3042\u308b\u300cDNS\u300d\u30bf\u30d6\" width=\"732\" height=\"578\" srcset=\"https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mac-system-setting-dns.png 732w, https:\/\/kinsta.com\/jp\/wp-content\/uploads\/sites\/6\/2018\/09\/mac-system-setting-dns-300x237.png 300w\" sizes=\"auto, (max-width: 732px) 100vw, 732px\" \/><figcaption id=\"caption-attachment-71327\" class=\"wp-caption-text\">macOS\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\u306b\u3042\u308b\u300cDNS\u300d\u30bf\u30d6<\/figcaption><\/figure><\/figure>\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"0\" data-end=\"73\"><strong>+<\/strong>\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001DNS\u30b5\u30fc\u30d0\u30fc\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002DNS\u8a2d\u5b9a\u3092\u5165\u529b\u3057\u305f\u3089\u3001\u300c<strong>OK<\/strong>\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n<p data-start=\"75\" data-end=\"212\" data-is-last-node data-is-only-node>DNS\u30b5\u30fc\u30d0\u30fc\u3092\u5909\u66f4\u3057\u3066\u3082\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306f\u3053\u308c\u307e\u3067\u3068\u540c\u3058\u3088\u3046\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u300c\u3053\u306e\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u300d\u30a8\u30e9\u30fc\u304c\u89e3\u6d88\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u307b\u304b\u3001\u30b5\u30a4\u30c8\u306e\u8aad\u307f\u8fbc\u307f\u304c\u901f\u304f\u306a\u3063\u305f\u308a\u3001\u305d\u308c\u307e\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304b\u3063\u305f\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u308a\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<div class data-turn-id-container=\"963521dc-b70f-435b-a5e5-ed6695e1f867\" data-is-intersecting=\"true\"><\/div>\n<div class data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-19\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&#038;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-19\" data-turn-id-container=\"request-6aa26114-9094-83eb-95f0-ddaef3d9b54b-19\" data-testid=\"conversation-turn-50\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] 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