อีกที่หนึ่งที่ใช้ตรวจสอบได้ว่าหน้าเว็บถูกบล็อกหรือไม่จะอยู่ในซอร์สโค้ด HTML ของหน้านั้น
คุณสามารถไปที่หน้าดังกล่าวและเลือก "ดูซอร์สโค้ดของหน้าเว็บ" ได้จากเบราว์เซอร์ของคุณ มีเมตาแท็ก noindex ในส่วน head ของ HTML หรือไม่
[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis post focuses on Google's public URL removal tool, which helps remove content from search results when it's on a site you don't control.\u003c/p\u003e\n"],["\u003cp\u003eBefore using the tool, contact the website owner and request they remove or block the content, ensuring they return a 404/410 response or use robots.txt/noindex meta tag.\u003c/p\u003e\n"],["\u003cp\u003eIf content is removed from the page but still appears in search results, request a cache removal using the tool to update Google's index.\u003c/p\u003e\n"],["\u003cp\u003eYou can use the tool to request removal of inappropriate content appearing in SafeSearch filtered results.\u003c/p\u003e\n"],["\u003cp\u003eFor issues or questions, refer to the Webmaster Help Forum or detailed removal instructions in Google's Help Center.\u003c/p\u003e\n"]]],[],null,["# URL removal explained, Part III: Removing content that you don't own\n\nTuesday, April 20, 2010\n\n\nWelcome to the third episode of our URL removals series! In episodes one and two, we talked about\n[expediting the removal of content that's under your control](/search/blog/2010/03/url-removal-explained-part-i-urls)\nand\n[requesting expedited cache removals](/search/blog/2010/04/url-removals-explained-part-ii-removing).\nToday, we're covering how to use Google's\n[public URL removal tool](https://www.google.com/webmasters/tools/removals)\nto request removal of content from Google's search results when the content originates on a\nwebsite not under your control.\n\nGoogle offers two tools that provide a way to request expedited removal of content:\n\n1. Verified URL removal tool: for requesting to remove content from Google's search results when it's published on a site of which you're a verified owner in Webmaster Tools (like your blog or your company's site)\n2. Public URL removal tool: for requesting to remove content from Google's search results when it's published on a site which you can't verify ownership (like your friend's blog)\n\n\nSometimes a situation arises where the information you want to remove originates from a site that\nyou don't own or can't control. Since each individual webmaster controls their site and their\nsite's content, the best way to update or remove results from Google is for the site owner (where\nthe content is published) to either block crawling of the URL, modify the content source, or\nremove the page altogether. If the content isn't changed, it would just reappear in our search\nresults the next time we crawled it. So the first step to remove content that's hosted on a site\nyou don't own is to\n[contact the owner of the website](https://www.google.com/support/webmasters/bin/answer.py?answer=9109)\nand request that they remove or block the content in question.\n\nRemoved or blocked content\n--------------------------\n\n\nIf the website owner removes a page, requests for the removed\npage should return a\n[`404 Not Found` response or a `410 Gone` response](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes).\nIf they choose to block the page from search engines, then the page should either be disallowed\nin the site's\n[robots.txt](/search/docs/crawling-indexing/robots/intro)\nfile or contain a\n[`noindex` `meta` tag](/search/docs/crawling-indexing/block-indexing).\nOnce one of these requirements is met, you can submit a removal request using the \"Webmaster has\nalready blocked the page\" option.\n\n\nSometimes a website owner will claim that they've blocked or removed a page but they haven't\ntechnically done so. If they claim a page has been blocked you can double check by looking at the\nsite's robots.txt file to see if the page is listed there as disallowed. \n\n```\nUser-agent: *\nDisallow: /blocked-page/\n```\n\n\nAnother place to check if a page has been blocked is within the page's HTML source code itself.\nYou can visit the page and choose \"View Page Source\" from your browser. Is there a meta noindex\ntag in the HTML `head` section? \n\n```\n\u003chtml\u003e\n\u003chead\u003e\n\u003ctitle\u003eblocked page\u003c/title\u003e\n\u003cmeta name=\"robots\" content=\"noindex\"\u003e\n\u003c/head\u003e\n...\n```\n\n\nIf they inform you that the page has been removed, you can confirm this by using an HTTP response\ntesting tool like the\n[Live HTTP Headers](https://addons.mozilla.org/en-US/firefox/addon/3829)\nadd-on for the Firefox browser. With this add-on enabled, you can request any URL in Firefox to\ntest that the HTTP response is actually `404 Not Found` or `410 Gone`.\n\nContent removed from the page\n-----------------------------\n\n\nOnce you've confirmed that the content you're seeking to remove is no longer present on the page,\nyou can request a\n[cache removal](https://www.google.com/support/webmasters/bin/answer.py?answer=59819)\nusing the 'Content has been removed from the page' option. This type of\nremoval---usually called a \"cache\" removal---ensures that Google's search results will not\ninclude the cached copy or version of the old page, or any\n[snippets](/search/docs/appearance/snippet)\nof text from the old version of the page. Only the current updated page (without the content\nthat's been removed) will be accessible from Google's search results. However, the current updated\npage can potentially still rank for terms related to the old content as a result of inbound links\nthat still exist from external sites. For cache removal requests you'll be asked to enter a \"term\nthat has been removed from the page.\" Be sure to enter a word that is not found on the current\nlive page, so that our automated process can confirm the page has changed---otherwise the\nrequest will be denied. Cache removals are covered in more detail in\n[part two of the \"URL removal explained\" series](/search/blog/2010/04/url-removals-explained-part-ii-removing).\n\nRemoving inappropriate webpages or images that appear in our SafeSearch filtered results\n----------------------------------------------------------------------------------------\n\n\nGoogle introduced the\n[SafeSearch](https://www.google.com/support/websearch/bin/answer.py?answer=510)\nfilter with the goal of providing search results that exclude potentially offensive content. For\nsituations where you find content that you feel should have been filtered out by SafeSearch, you\ncan request that this content be excluded from SafeSearch filtered results in the future. Submit\na removal request using the 'Inappropriate content appears in our SafeSearch filtered results'\noption.\n\n\nIf you encounter any issues with the public URL removal tool or have questions not addressed here,\nplease post them to the\n[Webmaster Help Forum](https://support.google.com/webmasters/community/label?lid=5489e59697a233d7)\nor consult the more\n[detailed removal instructions](https://www.google.com/support/webmasters/bin/answer.py?answer=164734)\nin our Help Center. If you do post to the forum, remember to use a\n[URL shortening service](https://www.google.com/search?q=url+shorteners)\nto share any links to content you want removed.\n\nOther posts of this series\n--------------------------\n\n- [Part I: Removing URLs and directories](/search/blog/2010/03/url-removal-explained-part-i-urls)\n- [Part II: Removing and updating cached content](/search/blog/2010/04/url-removals-explained-part-ii-removing)\n- [Part III: Removing content you don't own](/search/blog/2010/04/url-removal-explained-part-iii-removing)\n- [Part IV: Tracking requests, what not to remove](/search/blog/2010/05/url-removal-explained-part-iv-tracking)\n\n\nFinally, you might be also interested to read about\n[managing what information is available about you online](/search/blog/2009/10/managing-your-reputation-through-search).\n\n\nWritten by\n[Jonathan Simon](/search/blog/authors/jonathan-simon), Webmaster Trends Analyst"]]
