{"id":5117,"date":"2026-06-18T13:38:34","date_gmt":"2026-06-18T13:38:34","guid":{"rendered":"https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/"},"modified":"2026-06-18T13:38:34","modified_gmt":"2026-06-18T13:38:34","slug":"http-header-analyzer-paste-response-headers-audit-security-caching-seo","status":"publish","type":"page","link":"https:\/\/rimanagency.com\/fr\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/","title":{"rendered":"HTTP Header Analyzer \u2014 Paste Response Headers &#038; Audit Security, Caching, SEO"},"content":{"rendered":"<style>.rt-h{background:linear-gradient(135deg,#f1f5e8,#e8efdb);border-radius:14px;padding:32px;margin:0 0 24px;text-align:center}.rt-h h1{margin:0 0 10px;font-size:28px;color:#4a6320}.rt-g{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 24px}.rt-f,.rt-o{background:#fff;border:1px solid #e0e6d8;border-radius:10px;padding:22px}.rt-f h3,.rt-o h3{margin:0 0 14px;color:#4a6320;font-size:18px}.rt-f label{display:block;font-size:13px;color:#516048;font-weight:600;margin:10px 0 6px}.rt-f input,.rt-f select,.rt-f textarea{width:100%;padding:9px;border:1px solid #d4dac6;border-radius:6px;font-size:14px;box-sizing:border-box;font-family:inherit}.rt-btn{background:#719430;color:#fff;border:none;padding:11px 20px;border-radius:6px;font-weight:700;cursor:pointer;width:100%;margin-top:14px;font-size:15px}.rt-btn:hover{background:#4a6320}.rt-cta{background:linear-gradient(135deg,#719430,#4a6320);color:#fff;border-radius:14px;padding:32px;text-align:center;margin:30px 0}.rt-cta h3{margin:0 0 6px;color:#fff}.rt-cta a{background:#fff;color:#4a6320;padding:12px 28px;border-radius:6px;font-weight:700;text-decoration:none;display:inline-block;margin-top:14px}@media(max-width:768px){.rt-g{grid-template-columns:1fr}}<\/style>\n<div class=\"rt-h\">\n<h1>HTTP Header Analyzer<\/h1>\n<p>Paste raw HTTP response headers (from curl, browser DevTools, or any tool) and instantly see an audit: status code, caching policy, security headers, compression, and redirects. Spot misconfigurations that hurt performance, SEO, and security.<\/p>\n<\/div>\n<div class=\"rt-g\">\n<div class=\"rt-f\">\n<h3>Paste Raw Headers<\/h3>\n<p><label>Paste headers (one per line, Header-Name: value)<\/label><textarea id=\"hh-in\" rows=\"10\" placeholder=\"HTTP\/2 200\nserver: nginx\ncontent-type: text\/html\ncache-control: max-age=3600\nstrict-transport-security: max-age=31536000\nx-frame-options: SAMEORIGIN\"><\/textarea><\/div>\n<div class=\"rt-o\">\n<h3>Header Audit<\/h3>\n<div id=\"hh-out\" style=\"background:#fafafa;border:1px solid #e0e6d8;border-radius:8px;padding:14px;font-size:14px;min-height:80px;line-height:1.5\">Audit appears here<\/div>\n<\/div>\n<\/div>\n<p><script>function cHh(){var raw=document.getElementById(\"hh-in\").value;if(!raw.trim()){document.getElementById(\"hh-out\").innerHTML=\"<i style=\\\"color:#888\\\">Paste headers to see audit<\/i>\";return}var lines=raw.split(\"\\n\");var status=null,headers={};lines.forEach(function(l){l=l.trim();if(!l)return;var statusM=l.match(\/^HTTP\\\/[\\d.]+\\s+(\\d{3})\/i);if(statusM){status=parseInt(statusM[1]);return}var idx=l.indexOf(\":\");if(idx>0){var name=l.substring(0,idx).trim().toLowerCase();var val=l.substring(idx+1).trim();headers[name]=val}});var checks=[];if(status){var statusCol=status<300?\"#719430\":status<400?\"#d4a017\":\"#c44\";var statusLabel=status<200?\"Informational\":status<300?\"Success\":status<400?\"Redirect\":status<500?\"Client error\":\"Server error\";checks.push({type:\"info\",label:\"HTTP Status\",val:status+\" (\"+statusLabel+\")\",col:statusCol})}var hsts=headers[\"strict-transport-security\"];checks.push({type:hsts?\"good\":\"warn\",label:\"HSTS (Strict-Transport-Security)\",val:hsts||\"missing \u2014 forces HTTPS\",col:hsts?\"#719430\":\"#d4a017\"});var csp=headers[\"content-security-policy\"];checks.push({type:csp?\"good\":\"warn\",label:\"Content Security Policy\",val:csp?\"present\":\"missing \u2014 recommended\",col:csp?\"#719430\":\"#d4a017\"});var xfo=headers[\"x-frame-options\"];checks.push({type:xfo?\"good\":\"warn\",label:\"X-Frame-Options (clickjacking)\",val:xfo||\"missing\",col:xfo?\"#719430\":\"#d4a017\"});var xct=headers[\"x-content-type-options\"];checks.push({type:xct?\"good\":\"warn\",label:\"X-Content-Type-Options\",val:xct||\"missing \u2014 should be nosniff\",col:xct?\"#719430\":\"#d4a017\"});var referrer=headers[\"referrer-policy\"];checks.push({type:referrer?\"good\":\"warn\",label:\"Referrer-Policy\",val:referrer||\"missing \u2014 recommended\",col:referrer?\"#719430\":\"#d4a017\"});var cache=headers[\"cache-control\"];checks.push({type:cache?\"good\":\"warn\",label:\"Cache-Control\",val:cache||\"missing \u2014 set explicit policy\",col:cache?\"#719430\":\"#d4a017\"});var enc=headers[\"content-encoding\"];checks.push({type:enc?\"good\":\"warn\",label:\"Compression\",val:enc||\"missing \u2014 enable gzip or brotli\",col:enc?\"#719430\":\"#d4a017\"});var location=headers[\"location\"];if(status&#038;&#038;status>=300&&status<400)checks.push({type:location?\"good\":\"bad\",label:\"Redirect target (Location)\",val:location||\"missing \u2014 broken redirect\",col:location?\"#719430\":\"#c44\"});var server=headers[\"server\"];if(server)checks.push({type:\"warn\",label:\"Server header (leaks software)\",val:server+\" \u2014 consider hiding for security\",col:\"#d4a017\"});var poweredBy=headers[\"x-powered-by\"];if(poweredBy)checks.push({type:\"warn\",label:\"X-Powered-By (leaks tech stack)\",val:poweredBy+\" \u2014 consider removing\",col:\"#d4a017\"});var html='\n\n<div style=\"display:grid;gap:8px\">';checks.forEach(function(c){html+='<\/p>\n<div style=\"background:#fff;border:1px solid #e0e6d8;border-radius:8px;padding:10px 14px\">\n<div style=\"font-size:11px;font-weight:700;color:'+c.col+';text-transform:uppercase;letter-spacing:.5px\">'+c.label+'<\/div>\n<div style=\"font-size:13px;margin-top:3px;word-break:break-word\">'+c.val+'<\/div>\n<\/div>\n<p>'});html+='<\/p><\/div>\n<p>';var headerCount=Object.keys(headers).length;html+='<\/p>\n<div style=\"font-size:12px;color:#516048;margin-top:14px\"><b>'+headerCount+'<\/b> total headers parsed.<\/div>\n<p>';document.getElementById(\"hh-out\").innerHTML=html}document.getElementById(\"hh-in\").addEventListener(\"input\",cHh);cHh();<\/script><\/p>\n<h2>How to use the HTTP Header Analyzer<\/h2>\n<p>Get the HTTP response headers from the page you want to audit. In Chrome: open DevTools (F12), Network tab, click any request, scroll to &#8220;Response Headers&#8221; and copy. Or use curl: `curl -I https:\/\/example.com`. Paste into the input box. The analyzer audits status, security headers, caching, compression, and flags information leaks.<\/p>\n<h2>Why this tool matters<\/h2>\n<p>HTTP headers control nearly every aspect of page security, performance, and SEO outside the actual HTML. Missing HSTS allows downgrade attacks. Missing Cache-Control bloats your CDN bill. Missing Content-Encoding makes everything 70% larger over the wire. Information-leaking headers (Server, X-Powered-By) tell attackers exactly which exploits to try. Each fix takes one config change.<\/p>\n<h2>Common use cases<\/h2>\n<ul>\n<li>Pre-launch security audit before going live<\/li>\n<li>Diagnosing why a CDN is not caching properly<\/li>\n<li>Auditing a client site\\u2019s security posture before contract<\/li>\n<li>Confirming a redirect chain is working as expected<\/li>\n<li>Identifying technology-disclosure headers that should be removed<\/li>\n<li>Checking that compression is enabled on a slow-loading page<\/li>\n<\/ul>\n<h2>The headers that matter most<\/h2>\n<p>For security: strict-transport-security, content-security-policy, x-frame-options, x-content-type-options, referrer-policy. For performance: cache-control, content-encoding, vary. For SEO: cache-control (longer cache helps Core Web Vitals), x-robots-tag (controls indexing for non-HTML resources), link (canonical, hreflang in headers for non-HTML assets).<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Where do I get response headers from?<\/strong><br \/>Chrome DevTools \u2192 Network tab \u2192 click any request \u2192 &#8220;Headers&#8221; \u2192 scroll to &#8220;Response Headers&#8221;. Or run `curl -I URL` for a quick command-line check.<\/p>\n<p><strong>What is HSTS and why does it matter?<\/strong><br \/>Strict-Transport-Security tells browsers to ALWAYS use HTTPS for your domain \u2014 blocking downgrade attacks where attackers force HTTP. Once set, browsers refuse HTTP even if the user types it. Always enable on production sites.<\/p>\n<p><strong>Should I hide the Server header?<\/strong><br \/>For security hardening, yes \u2014 disclosing &#8220;nginx 1.18&#8221; tells attackers which CVEs apply. The headers are easy to remove in nginx, Apache, IIS, and most CDNs. Not a critical issue but a free hardening win.<\/p>\n<p><strong>What does X-Robots-Tag in headers do?<\/strong><br \/>It controls indexing for non-HTML resources (PDFs, images, JSON files). You cannot add <meta robots> to a PDF \u2014 but you can send `X-Robots-Tag: noindex` as an HTTP header. Useful for keeping internal assets out of search.<\/p>\n<div class=\"rt-cta\">\n<h3>Need a full security and performance audit including headers, CSP, and CDN config?<\/h3>\n<p style=\"margin:0;opacity:.95\">Riman Agency runs technical SEO and security audits.<\/p>\n<p><a href=\"\/contact\/\">Book a Technical Audit<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>HTTP Header Analyzer Paste raw HTTP response headers (from curl, browser DevTools, or any tool) and instantly see an audit: status code, caching policy, security headers, compression, and redirects. Spot misconfigurations that hurt performance, SEO, and security. Paste Raw Headers Paste headers (one per line, Header-Name: value) Header Audit Audit appears here How to use [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5117","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HTTP Header Analyzer \u2014 Paste Response Headers &amp; Audit Security, Caching, SEO - Riman Agency<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rimanagency.com\/fr\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HTTP Header Analyzer \u2014 Paste Response Headers &amp; Audit Security, Caching, SEO - Riman Agency\" \/>\n<meta property=\"og:description\" content=\"HTTP Header Analyzer Paste raw HTTP response headers (from curl, browser DevTools, or any tool) and instantly see an audit: status code, caching policy, security headers, compression, and redirects. Spot misconfigurations that hurt performance, SEO, and security. Paste Raw Headers Paste headers (one per line, Header-Name: value) Header Audit Audit appears here How to use [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rimanagency.com\/fr\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/\" \/>\n<meta property=\"og:site_name\" content=\"Riman Agency\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/rimanagency.com\\\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\\\/\",\"url\":\"https:\\\/\\\/rimanagency.com\\\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\\\/\",\"name\":\"HTTP Header Analyzer \u2014 Paste Response Headers & Audit Security, Caching, SEO - Riman Agency\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#website\"},\"datePublished\":\"2026-06-18T13:38:34+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/rimanagency.com\\\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\\\/#breadcrumb\"},\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/rimanagency.com\\\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/rimanagency.com\\\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/rimanagency.com\\\/home\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HTTP Header Analyzer \u2014 Paste Response Headers &#038; Audit Security, Caching, SEO\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#website\",\"url\":\"https:\\\/\\\/rimanagency.com\\\/\",\"name\":\"Riman Agency\",\"description\":\"A Full Service Digital Marketing Agency\",\"publisher\":{\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/rimanagency.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-CA\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#organization\",\"name\":\"Riman Agency\",\"url\":\"https:\\\/\\\/rimanagency.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-CA\",\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/rimanagency.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/RIMANagency-all-logos-1-2.png\",\"contentUrl\":\"https:\\\/\\\/rimanagency.com\\\/wp-content\\\/uploads\\\/2022\\\/02\\\/RIMANagency-all-logos-1-2.png\",\"width\":694,\"height\":211,\"caption\":\"Riman Agency\"},\"image\":{\"@id\":\"https:\\\/\\\/rimanagency.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"HTTP Header Analyzer \u2014 Paste Response Headers & Audit Security, Caching, SEO - Riman Agency","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/rimanagency.com\/fr\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/","og_locale":"fr_CA","og_type":"article","og_title":"HTTP Header Analyzer \u2014 Paste Response Headers & Audit Security, Caching, SEO - Riman Agency","og_description":"HTTP Header Analyzer Paste raw HTTP response headers (from curl, browser DevTools, or any tool) and instantly see an audit: status code, caching policy, security headers, compression, and redirects. Spot misconfigurations that hurt performance, SEO, and security. Paste Raw Headers Paste headers (one per line, Header-Name: value) Header Audit Audit appears here How to use [&hellip;]","og_url":"https:\/\/rimanagency.com\/fr\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/","og_site_name":"Riman Agency","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/","url":"https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/","name":"HTTP Header Analyzer \u2014 Paste Response Headers & Audit Security, Caching, SEO - Riman Agency","isPartOf":{"@id":"https:\/\/rimanagency.com\/#website"},"datePublished":"2026-06-18T13:38:34+00:00","breadcrumb":{"@id":"https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/#breadcrumb"},"inLanguage":"fr-CA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/rimanagency.com\/http-header-analyzer-paste-response-headers-audit-security-caching-seo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/rimanagency.com\/home\/"},{"@type":"ListItem","position":2,"name":"HTTP Header Analyzer \u2014 Paste Response Headers &#038; Audit Security, Caching, SEO"}]},{"@type":"WebSite","@id":"https:\/\/rimanagency.com\/#website","url":"https:\/\/rimanagency.com\/","name":"Agence Riman","description":"Une agence de marketing num\u00e9rique \u00e0 service complet","publisher":{"@id":"https:\/\/rimanagency.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/rimanagency.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-CA"},{"@type":"Organization","@id":"https:\/\/rimanagency.com\/#organization","name":"Agence Riman","url":"https:\/\/rimanagency.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-CA","@id":"https:\/\/rimanagency.com\/#\/schema\/logo\/image\/","url":"https:\/\/rimanagency.com\/wp-content\/uploads\/2022\/02\/RIMANagency-all-logos-1-2.png","contentUrl":"https:\/\/rimanagency.com\/wp-content\/uploads\/2022\/02\/RIMANagency-all-logos-1-2.png","width":694,"height":211,"caption":"Riman Agency"},"image":{"@id":"https:\/\/rimanagency.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/pages\/5117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/comments?post=5117"}],"version-history":[{"count":0,"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/pages\/5117\/revisions"}],"wp:attachment":[{"href":"https:\/\/rimanagency.com\/fr\/wp-json\/wp\/v2\/media?parent=5117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}