Growth decision tools
JavaScript SEO and HTML Evidence Checker
Compare raw HTML with a rendered HTML snapshot you provide. Find observable content differences and turn them into specific checks for engineering.
HTML evidence comparison
Inspect pasted source and optional rendered HTML locally; no URL fetch or indexing verdict.
Analyze HTML you supply. Nothing is fetched, executed or rendered here.
Add your evidence
Pasted HTML is parsed as text. It is never inserted into this page or executed. Remove secrets and private customer records before using it.
Start with what you know.
Supply the HTML or evidence you collected, then inspect it here. This tool does not visit a URL or verify live platform behavior.
- Use the result without an email gate.
- Keep source observations separate from assumptions.
- Export only when you are ready to share the contents.
Calculations and pasted-evidence analysis run in this browser. Saving is optional.
Keep the work. Control the sharing.
JSON files include your inputs. CSV and copied briefs include results that may be sensitive. A copied tool link opens this tool without your inputs or result.
A useful technical finding needs the actual source behind it
A page can look complete in a browser while key headings, links or metadata are missing from its initial response. The opposite can also happen: an HTML excerpt can omit content because the capture was incomplete. This tool keeps those evidence questions visible instead of turning one snapshot into an indexing verdict.
Method and assumptions
Paste the initial page HTML and, optionally, a rendered HTML snapshot from the same URL and observation. The checker extracts structural evidence such as headings, canonical declarations, robots metadata, links and structured-data declarations. Compare the fields and inspect the actual excerpts. Pasted HTML is treated as text and is not executed.
An illustrative example
If a buyer-facing heading appears only in your rendered snapshot, the result establishes a difference between those supplied captures. It does not establish whether Google rendered the page, whether a bot was blocked, or whether indexing or AI citation changed. Reproduce the capture and decide which important content should be available in the initial response.
Turn the result into a useful next step
Capture the same page, state and version before comparing. Include a full document rather than a small snippet when investigating missing fields. Give engineering a reproducible observation, expected behavior and a retest step. I can personally review a migration or rendering issue and implement the appropriate correction.
What the result can establish
This mode does not fetch a URL, run a browser, check response headers, retrieve robots.txt or access Search Console. Rendering, crawler admission, indexing and AI citations remain separate questions. A missing declaration in a pasted excerpt is not proof that the live page lacks it.
Questions before you use the result
Does this fetch or render my website?
No. This version analyzes HTML that you paste. A rendered snapshot must be supplied by you; the tool does not create one.
Does a match prove Google can index the page?
No. Matching captures are useful structural evidence. Indexing also depends on crawler access, response behavior, directives, rendering and Google’s systems.
Can I paste a partial excerpt?
Yes, but interpret absent fields as unobserved in that excerpt. Use a complete document for a reliable page-level comparison.
Is pasted JavaScript executed?
No. The checker analyzes text and structural declarations. It does not run your scripts or send them to an AI provider.
Do I need to leave my email to use the result?
No. The core tool works without an email gate. Contacting me about an engagement is an optional next step.
Who delivers the consulting work?
I do. I personally lead and deliver the agreed work. Your business retains its own responsibilities and access approvals; the scope is agreed with me directly.
Connect the decision to action
Work with me on the next decision
I personally review the business problem, agree the scope with you and deliver the work. Bring the questions the tool helped you identify.