Spam Score Checker
Fetch a live URL and check it for on-page spam signals — keyword stuffing, hidden text and iframes, spammy link text, redirects, suspicious domain patterns and link density — as a 0-100% spam score with a pass/warning/fail checklist.
Input
Fetched server-side (cross-origin HTML can't be read in the browser).
Output
Your results will appear here.
| Category | Check | Status | Details |
|---|---|---|---|
| No data yet | |||
More ways to use this tool
REST API
curl -X POST https://api.iotools.cloud/v1/tool/spam-score-checker \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://example.com/"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `spam-score-checker` tool (Spam Score Checker) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.
| Cost per API/MCP call | From 5 credits |
|---|---|
| Need more credits? | View pricing |
Also available with
Guides
Fetch a live web page and check it for the on-page signals search engines associate with spam — keyword stuffing, hidden text and iframes, spam-related link text, instant redirects, suspicious domains and TLDs, extreme link density and missing trust pages — and get a 0–100% spam score with a pass/warning/fail checklist.
How to use it
- Enter the page's full URL (including
https://). - Press Check spam score.
- Read the summary (Low / Medium / High spam risk), then the checklist for exactly which signals fired and why. Download it as CSV if you need it.
How the score is calculated
Each check scores 0 (Pass), half (Warning) or full (Fail) risk points; the spam score is the share of possible points, scaled so a page failing a handful of serious checks lands in "High". Below 15% is Low, 15–39% Medium, 40% and above High. Every check is deterministic — the same page gives the same result.
How is this different from Moz Spam Score?
Moz's Spam Score is computed from a crawled link index — backlink patterns across many sites. No free tool can reproduce it, so this checker does not pretend to. It looks only at what the page itself reveals. For backlink quality, use a dedicated link-index service; for the page itself, this is fast and free.
Why was a legitimate site flagged?
Menus and modals often use display:none, and some sites genuinely have
many outbound links. Treat Warnings as prompts to look, not verdicts; a few
of them on an otherwise healthy site are normal.
Is my data sent anywhere?
Only the URL you enter is fetched by our server. Nothing is stored or sent to a third party.