Paste a page's HTML source and see what a search crawler extracts: title, meta description, robots and canonical tags, the heading outline, the visible text and word count, plus link and image alt checks.
For your privacy and browser security this tool cannot fetch a live URL. It reads the HTML you paste, parses it in a detached document so any scripts in your page never run, and shows what a crawler would extract.
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When a search crawler visits a page it does two things. First it reads the raw HTML the server sends, then it renders the page much like a browser does, running JavaScript and building the final layout. The text, headings and links that already sit in the raw HTML are the safest bet, because they are available before any script runs. Anything that only appears after JavaScript executes can still be read, but it depends on rendering working correctly and on the crawler choosing to spend the time. That is why this tool focuses on the HTML you paste in: it shows you the foundation a crawler starts from.
The signals below are the ones this simulator extracts, and they map directly to how your page can appear in search.
| Element | Why it matters |
|---|---|
| Title and meta description | These often become the headline and snippet in search results. If they are missing, the engine writes its own from your page text. |
| Meta robots (noindex / nofollow) | A stray noindex keeps the page out of search entirely. This is one of the most common reasons a page silently disappears. |
| Canonical link | Tells the engine which URL is the preferred version when similar pages exist, so ranking signals are not split. |
| Heading outline | Headings give the crawler the structure of your content. One clear H1 and a logical order help it understand the topic. |
| Visible text and word count | The plain text left after scripts and styles are removed is roughly the copy the engine evaluates for relevance. |
| Image alt text | Alt text is what a crawler reads in place of an image, and it feeds both image search and accessibility. |
Plenty of pages look complete in a browser yet hand a crawler almost nothing in the raw HTML, because the real content is built by scripts after load. If your main text, headings or links only show up after rendering, you are relying on a slower, less certain path to get indexed. Pasting your source here is a quick way to check whether the important parts are present from the start. If a page reads thin here, that is a strong hint to move key content into the server response. For a full picture across your whole site, request a free SEO audit and we will check rendering, indexing and structure for you.
Build title tags and preview them in a live Google SERP, with pixel-width and character checks plus one-click copy.
Build valid JSON-LD structured data for FAQ, Article, Organization, Local Business, Product and Breadcrumb rich results.
Build a valid robots.txt live: set a crawl policy, block common paths, add a sitemap, then copy or download.
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