Spider Simulator (Bot’s-Eye View)
Paste a page\u2019s HTML and see what a search-engine crawler actually reads: clean visible text, every link with its anchor text, image alt attributes, and the rendered title and meta description. Spot hidden content issues before they hurt your rankings.
Paste Page HTML
How to use the Spider Simulator
View source of the page you want to audit (Ctrl+U or Cmd+Option+U), copy the full HTML, and paste it into the input box. The Spider Simulator strips scripts, styles, and noscript blocks — leaving exactly what a crawler reads. You see title, meta description, heading structure, visible text, every link with its anchor text and rel attributes, and an audit of image alt text.
Why this tool matters
Google\u2019s ranking is driven by what its crawler reads, not what your users see. Slow JavaScript can hide content from crawlers. Hidden CSS can produce invisible-text spam signals. Missing alt text invisibly costs you image search ranking. Generic anchor text (“click here”) tells Google nothing about what the linked page is about. The Spider Simulator surfaces every one of these issues in seconds.
Common use cases
- Pre-launch SEO audit of a new landing page
- Comparing how a competitor\u2019s page reads to a crawler vs. how yours reads
- Detecting content that loads via JavaScript and may not get indexed
- Auditing anchor text quality across internal links
- Verifying that hidden or accordion content is actually crawlable
- Finding orphan images without alt attributes
What the simulator does NOT do
The simulator works on the raw source HTML you paste. If your site renders content client-side with React, Vue, or Angular and you paste the initial HTML, you will not see the rendered content — because the bot would not see it either (unless your site uses SSR or pre-rendering). To audit JS-rendered content, paste the source after the JS has run (using browser tools like “View Page Source” vs. “Inspect Element”).
Frequently Asked Questions
Why do I have to paste HTML instead of entering a URL?
Browser security (CORS) blocks tools running in the browser from fetching arbitrary URLs. A server-side fetcher would be paid; pasting keeps the tool free, private, and fast.
What\u2019s the difference between View Source and Inspect Element?
View Source shows the raw HTML delivered by the server (what a crawler downloads first). Inspect Element shows the DOM after JavaScript has modified it. For SEO auditing, View Source is usually the more important view.
How does Google handle JavaScript-rendered content?
Google does render JavaScript, but in a delayed second pass. Many smaller search engines and AI crawlers do not. For maximum visibility, ensure key content is in the initial HTML — not added client-side.
What is “anchor text quality”?
Strong anchor text describes what the linked page is about (e.g., “marketing ROI calculator”). Weak anchor text (“click here”, “learn more”) tells Google nothing. Aim for descriptive anchors throughout your site.
Need a deep technical SEO audit that finds every crawl issue?
Riman Agency runs comprehensive on-page and technical SEO audits.
