HTML Meta Extractor — Extract Meta Tags from HTML Source

A complete meta tag audit covers: the title tag (50–60 characters, unique per page, includes primary keyword); the meta description (150–160 characters, unique, includes call to action); the canonical link (href matches the intended indexed URL); Open Graph tags (og:title, og:description, og:image, og:url, og:type); Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image); robots meta tag (should be "index, follow" for most pages, "noindex" only for pages that should not appear in search results); viewport meta tag (must be present for mobile usability); and charset declaration. This tool extracts all of these from pasted HTML so you can verify each one.

Before pushing a new page or template change to production, paste the HTML source of the staging page into this tool and verify: the title and description are the intended values and within character limits; the canonical URL matches the expected production URL (not the staging domain); og:image URL points to a production-accessible image URL; the robots meta is set to "index, follow" (staging environments often have noindex templates that can accidentally ship to production); and all OGP tags are populated with real content rather than placeholder values. This quick check prevents SEO regressions from reaching production.

This tool is particularly useful for auditing HTML from sources you do not control: pages behind authentication, competitor analysis, CMS-generated pages where you want to verify what the server actually outputs, or HTML returned by a web scraper. Rather than inspecting the DOM in browser developer tools (which shows the post-JavaScript-render state), pasting raw HTML from the server response shows exactly what search engine crawlers see — since most crawlers do not execute JavaScript, server-rendered meta tags are what actually get indexed. For JavaScript-rendered sites, use Google Search Console's URL Inspection tool to see the rendered meta tags as Googlebot sees them.

Duplicate meta tags occur when a CMS or template system outputs a tag from the theme and again from a plugin — for example, Yoast SEO and a theme that also outputs og:image. Search engines use the first occurrence, but duplicates indicate a configuration conflict that should be resolved. Missing tags most commonly affect newly created page types or edge-case templates (search result pages, tag archives, 404 pages) that were not covered in the original template setup. A site-wide crawl with a tool that extracts meta data from every page is the most reliable way to find missing tags at scale.

One of the most damaging meta tag errors is shipping a canonical tag that points to a staging domain URL rather than the production domain. This tells search engines that the staging version is the authoritative page, causing the production version to be treated as a duplicate. The issue typically originates from CMS settings that auto-generate canonicals from the site URL, which is set to the staging domain during development. Always verify the canonical href value in pre-deployment audits. If the canonical shows "staging.example.com" or "localhost" rather than "example.com", fix the CMS site URL setting before deploying.

Accidentally deploying noindex meta tags to production pages is a common and high-impact SEO error. It can happen when a developer forgets to remove a noindex tag added during development, when a staging template is incorrectly applied to production, or when a WordPress plugin's "discourage search engines" setting is accidentally left enabled after the site goes live. Symptoms include: pages that were previously indexed suddenly disappearing from search results. Check for the meta robots tag in this tool — "noindex" in the content attribute means the page will be removed from search results within days. The fix is immediate: remove the noindex tag and submit the page for recrawl in Google Search Console.