Bulk Header Audit Tool
Analyze status codes, meta tags, and canonicalization in bulk.
| URL & Status | Robots | Canonical | Content Tags (Title / Desc / H1) |
|---|
Results will appear here
What does the Bulk SEO Auditor do?
This tool fetches a list of URLs and checks each one's HTTP status, robots meta directive, canonical tag (including whether it's missing, self-referencing, or pointing elsewhere), title tag, meta description, and H1 count — all in one pass, with results in a sortable table you can export as CSV. It's built for a fast site-wide sanity check rather than a deep crawl: paste your URL list, run it, and spot missing canonicals, noindex tags left on live pages, or duplicate/missing titles at a glance.
Requests run three at a time to keep things responsive without hammering the target site. Because this runs entirely in your browser, fetching another site's HTML requires routing through a public CORS proxy (allorigins.win) — worth knowing about, see the FAQ below for what that means in practice.
Frequently asked questions
Is the Bulk SEO Auditor free to use?
Yes, completely free with no account or usage limit.
How does it fetch other websites' HTML from my browser?
Browsers block direct cross-origin requests to other sites (CORS), so this tool routes fetches through a free public proxy, allorigins.win. That means the proxy technically sees the URLs you're auditing in transit, and being a free shared service, it can occasionally rate-limit or fail under load — if you hit errors on a large batch, try running it in smaller chunks.
Is my URL list uploaded anywhere besides the proxy request itself?
No separate upload happens — the only network activity is the proxy fetch needed to retrieve each page's HTML, which is the mechanism the tool needs to work at all. No URL list or results are stored on any server; everything else happens locally in your browser.
What does "self-referencing" canonical mean?
It means the page's canonical tag points back to its own URL rather than to a different page — generally the correct, expected setup for a page that isn't a duplicate of something else.
Can I export the results?
Yes — once an audit finishes, the CSV button becomes active and exports every column (status, robots, canonical, title, description, H1 data) as a downloadable CSV file.