{"id":28488,"date":"2026-09-08T21:56:08","date_gmt":"2026-09-08T18:56:08","guid":{"rendered":"https:\/\/alienroad.com\/yandex-bilgi-bankasi\/server-response-check\/"},"modified":"2026-09-09T00:47:43","modified_gmt":"2026-09-08T21:47:43","slug":"server-response-check","status":"publish","type":"ar_ykb","link":"https:\/\/alienroad.com\/yandex-bilgi-bankasi\/server-response-check\/","title":{"rendered":"Server response check"},"content":{"rendered":"<p>The server response check is the most-used diagnostic in the console, because it shows what the robot receives rather than what a browser renders. Yandex opens with the rule that makes it decisive: <strong>if the response is not <code>200 OK<\/code>, or carries one of the listed messages, the page is excluded from search results.<\/strong><\/p>\n<h2>What it reports<\/h2>\n<ul>\n<li>The <strong>HTTP status<\/strong>.<\/li>\n<li>The <strong>SSL certificate status<\/strong> for HTTPS sites \u2014 with a long list of specific faults: issuer not found, signature invalid or undecryptable, certificate not yet active, expired, self-signed and untrusted, chain containing only one non-self-signed certificate, revoked, chain too long, wrong certificate type, root untrusted or blacklisted, or a certificate already issued to another site. These are resolved with the certificate authority or hosting provider, not on the site.<\/li>\n<li><strong>Diagnostic messages<\/strong> covering the common failures.<\/li>\n<\/ul>\n<h2>The messages worth knowing<\/h2>\n<ul>\n<li><strong>Document failed to load \/ failed to connect.<\/strong> Three causes: the robot blocked at the server (check IP blocking), a DNS error, or a timeout \u2014 <strong>the response must arrive within 3 seconds<\/strong>.<\/li>\n<li><strong><code>noindex<\/code> tag disables indexing<\/strong>, or <strong>indexing disallowed in robots.txt<\/strong>.<\/li>\n<li><strong>Document too large<\/strong> \u2014 the 10 MB limit.<\/li>\n<li><strong>Unsupported format<\/strong> \u2014 HTML plus PDF, DOC\/DOCX, XLS\/XLSX, PPT\/PPTX, ODS\/ODP\/ODT\/ODG, RTF, TXT and SWF.<\/li>\n<li><strong>Language not recognised<\/strong>, or <strong>document contains no text<\/strong>.<\/li>\n<li><strong>Page content is missing<\/strong> \u2014 check the HTTP header, because <code>Content-length: 0<\/code> makes the page unindexable, and the declared size must match the actual content.<\/li>\n<\/ul>\n<h2>How to use it properly<\/h2>\n<p>Select the specific robot \u2014 the dropdown carries the main agents, and testing only the default hides mobile-specific blocking. Use the <strong>If-Modified-Since<\/strong> field to confirm conditional responses: the page&#8217;s real modification date should return <code>200<\/code>, any other date <code>304<\/code>.<\/p>\n<h2>The caveat Yandex states itself<\/h2>\n<p>The tool requests from a different IP than the robot, so its result <strong>may differ from what the robot actually receives<\/strong>. When the two disagree, the server log is the authority.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The server response check is the most-used diagnostic in the console, because it shows what the robot receives rather than what a browser renders. Yandex opens with the rule that makes it decisive: if the response is not 200 OK, or carries one of the listed messages, the page is excluded from search results. What [&hellip;]<\/p>\n","protected":false},"menu_order":64,"template":"","meta":{"footnotes":""},"ar_ykb_kategori":[763],"ar_ykb_etiket":[],"class_list":["post-28488","ar_ykb","type-ar_ykb","status-publish","has-post-thumbnail","hentry","ar_ykb_kategori-tools"],"_links":{"self":[{"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb\/28488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb"}],"about":[{"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/types\/ar_ykb"}],"version-history":[{"count":2,"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb\/28488\/revisions"}],"predecessor-version":[{"id":29129,"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb\/28488\/revisions\/29129"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/media\/28870"}],"wp:attachment":[{"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/media?parent=28488"}],"wp:term":[{"taxonomy":"ar_ykb_kategori","embeddable":true,"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb_kategori?post=28488"},{"taxonomy":"ar_ykb_etiket","embeddable":true,"href":"https:\/\/alienroad.com\/wp-json\/wp\/v2\/ar_ykb_etiket?post=28488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}