{"id":1587,"date":"2020-06-07T22:12:21","date_gmt":"2020-06-07T14:12:21","guid":{"rendered":"https:\/\/www.wesbytes.com\/guide\/?post_type=kb&#038;p=1587"},"modified":"2026-01-12T14:02:35","modified_gmt":"2026-01-12T06:02:35","slug":"how-can-i-do-if-railgun-is-running-on-my-site","status":"publish","type":"kb","link":"https:\/\/www.servergigabit.com\/guide\/kb\/how-can-i-do-if-railgun-is-running-on-my-site","title":{"rendered":"How can I do if Railgun is running on my site?"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/cf-assets.www.cloudflare.com\/zkvhlag99gkb\/3ECdNDw0dyUtAPF4eoiXBE\/751dbcd8f8d18f84e2a399c58ac9b63e\/claire_screenshot.png.scaled500.png\" alt=\"railgun\" width=\"264\" height=\"523\" \/><\/p>\n<h3>How can I do if Railgun is running on my site?<\/h3>\n<p>When a request is handled by\u00a0<a href=\"https:\/\/www.cloudflare.com\/railgun\" rel=\"nofollow noopener\" target=\"_blank\">Railgun<\/a>, Cloudflare inserts a header with diagnostic information to track how the protocol is doing. Besides that , If you want to see these headers, you\u2019ll need to use a browser that supports examining header information.<\/p>\n<p>How to check with various browsers:<\/p>\n<p><strong>Google Chrome:<\/strong>\u00a0View &gt; Developer &gt; Developer Tools menu. You can also install\u00a0<a href=\"https:\/\/chrome.google.com\/webstore\/detail\/claire\/fgbpcgddpmjmamlibbaobboigaijnmkl\" rel=\"nofollow noopener\" target=\"_blank\">Cloudflare\u2019s Claire extension<\/a>.<\/p>\n<p><strong>Safari:<\/strong>\u00a0Develop &gt; Show Web Inspector menu<\/p>\n<p><strong>Firefox:<\/strong>\u00a0Install Firebug<\/p>\n<p><strong>Microsoft Internet Explorer:<\/strong>\u00a0You can use a tool like\u00a0Fiddler<\/p>\n<p><strong>cf-railgun<\/strong>: \u00a0 e95b1c46e0 0.02 0.037872 0030 9878<\/p>\n<p><strong>cf-ray:<\/strong>\u00a0\u00a0 478149ad1570291<\/p>\n<p>&nbsp;<\/p>\n<p>However , the CF-Railgun header has up to five codes separated by a space.\u00a0<span class=\"word\">In\u00a0<\/span><span class=\"word\">this\u00a0<\/span><span class=\"word\">order,\u00a0<\/span><span class=\"word\">from\u00a0<\/span><span class=\"word\">the\u00a0<\/span><span class=\"word\">example\u00a0<\/span><span class=\"word\">of\u00a0<\/span><span class=\"word\">cf-railgun,\u00a0<\/span><span class=\"word\">these\u00a0<\/span><span class=\"word\">codes\u00a0<\/span><span class=\"word\">and\u00a0<\/span><span class=\"word\">their\u00a0<\/span><span class=\"word\">corresponding\u00a0<\/span><span class=\"word\">values:\u00a0<\/span><span class=\"word\">e95b1c46e0\u00a0<\/span><span class=\"word\">0.02\u00a0<\/span><span class=\"word\">0.037872\u00a0<\/span><span class=\"word\">0030\u00a0<\/span><span class=\"word\">9878\u00a0<\/span><span class=\"word\">are\u00a0<\/span><span class=\"word\">as\u00a0<\/span><span class=\"word\">follows<\/span>:<\/p>\n<ul>\n<li>Railgun Request ID:\u00a0e95b1c46e0 (internal process number that allows us to track what connection handled a request )<\/li>\n<li>Compression Ratio: 0.02 (the size of the response after Railgun\u2019s delta compression expressed as a percentage)<\/li>\n<li>Origin Processing Time: 0.037872 (that Railgun waits for the origin web server to generate the page)<\/li>\n<li>Railgun Flags: 0030 (how a request was processed)<\/li>\n<li>Version Number: 9878 (indicates the version of the Railgun Listener software on the origin server\u2019s network)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Please refer to the following article to know more.<br \/>\nKnowledge Base: <a href=\"https:\/\/www.servergigabit.com\/guide\/kb\/use-railgun-with-origin-ca-certificates\">Step-by-step to Use Railgun with Origin CA Certificates<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How can I do if Railgun is running on my site? When a request is handled by\u00a0Railgun, Cloudflare inserts a header with diagnostic information to track how the protocol is doing. Besides that , If you want to see these headers, you\u2019ll need to use a browser that supports examining header information. How to check with various browsers: Google Chrome:\u00a0View&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"kbtopic":[43],"kbtag":[1419],"class_list":["post-1587","kb","type-kb","status-publish","hentry","kbtopic-cloudflare","kbtag-railgun"],"_links":{"self":[{"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kb\/1587","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kb"}],"about":[{"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/types\/kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/comments?post=1587"}],"version-history":[{"count":4,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kb\/1587\/revisions"}],"predecessor-version":[{"id":6028,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kb\/1587\/revisions\/6028"}],"wp:attachment":[{"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/media?parent=1587"}],"wp:term":[{"taxonomy":"kbtopic","embeddable":true,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kbtopic?post=1587"},{"taxonomy":"kbtag","embeddable":true,"href":"https:\/\/www.servergigabit.com\/guide\/wp-json\/wp\/v2\/kbtag?post=1587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}