Spam Score Checker
Free, no sign-up: enter a domain or URL and we check 18 signals that search engines and spam filters use to spot spammy sites — blacklists (Spamhaus DBL, SURBL, URIBL), cloaking for Googlebot, redirecting visitors from Google, hidden links and text, keyword stuffing, thin content, link farms, a very new domain, HTTPS, redirects and trust pages. The 0–100 score is a transparent sum of the weights of signals found (0 means none) — it is not Moz Spam Score.
How the score works
Each signal found adds its weight; totals above 100 are capped at 100. 0–10: few or none, 11–30: some, 31–60: many, above 60: high risk. Weights:
Why not Moz Spam Score: Moz estimates the share of sites with similar features that Google penalized, using its own link index — nobody but Moz has that data, and passing our score off as theirs would be dishonest. For Moz’s Spam Score use Moz Link Explorer (free account required). We check one page (the home page or the URL you enter), do not run JavaScript, and cannot see cloaking based on Googlebot’s IP addresses.
Key facts
- Price
- Free
- Sign-up
- Not required
- Processing
- On our server: the page is fetched three times (as a browser, as Googlebot and with a Google referrer); Spamhaus DBL, SURBL and URIBL via DNS; domain age from the registry’s RDAP
- Input
- A domain (example.com) or page URL; HTML up to 2.5 MB, JavaScript is not run
- Limits
- 6 checks a minute; 15 a day without an account, 45 with one, unlimited with Pro; results per URL cached for 6 hours
- Output
- A 0–100 score as the sum of 18 published signal weights, an explanation and fix for each signal found, blacklist statuses with delisting links, and a comparison with the Googlebot version
- Last updated
Alternatives
Other tools for the same job, and what each one does well:
- Moz Link Explorer (Spam Score) — The actual Moz Spam Score, alongside Domain Authority and link data from Moz’s index; requires a free account, 10 queries a month.
- Sucuri SiteCheck — A free scanner for known malware, blacklisting status, website errors and out-of-date software.
- Google Safe Browsing site status — Google’s official check of whether a site is flagged as dangerous (phishing, malware) — the same warning Chrome users see.
When to choose this tool: When you want the page itself analysed without signing up: cloaking, redirects for Google visitors, hidden links, keyword stuffing, links to blacklisted sites and domain age — in one report with points and fixes, in English, Ukrainian, Russian or Polish.
Descriptions checked against each tool's own site in October 2026.
Free Spam Score Checker
The tool loads the page three times — as a normal browser, as Googlebot and as a visitor arriving from Google — and looks for the signals search engines and anti-spam systems use to spot spammy and hacked sites: cloaking, redirects for search visitors, hidden links and text, keyword stuffing, thin content, footer link farms and links to blacklisted sites. The domain is checked against Spamhaus DBL, SURBL and URIBL, and its age via RDAP. Each signal found adds a published weight to a 0–100 total, with an explanation and a fix. It is not Moz Spam Score: Moz uses its own model over its link index; ours are checks you can repeat by hand.
How to Use
- Enter a domain or page URL
- Wait for the check — usually 5–20 seconds
- Work through the signals using the tips and check again
FAQ
What a spam score is — and why every tool has its own
A “spam score” is not a Google metric. Google does not publish how spammy it thinks a site is; it has spam policies and manual actions in Search Console. Everything else is a third-party model:
| Score | How it is calculated | Best for |
|---|---|---|
| Moz Spam Score | Share of sites with similar features that Google penalised, based on Moz’s link index | Vetting link sources and backlink profiles |
| “Toxic link” scores in SEO suites | Each vendor’s own model over its backlink database | Auditing inbound links |
| This checker | Sum of published weights from 18 checks on one page | Finding exactly what on a site looks spammy or hacked, and fixing it |
Numbers from different tools are not comparable: a 30 from Moz and a 30 here mean different things. Look at which signals were found, not at the number.
Which signals matter most
- Hacks are the most common cause of “sudden” spam on a normal site: cloaking (Googlebot sees casino or pharma pages), redirecting visitors from Google to another site, hidden links in the template. Each carries 20–25 points — fix these first.
- Blacklists — Spamhaus DBL and SURBL are used by mail filters and security products. If your domain is listed, its email bounces and links to it get stripped.
- Link schemes — a footer link farm, outbound links to spam niches and to blacklisted sites. For link buyers, these are the main reasons to walk away from a site.
- Page quality — thin content, keyword stuffing, no contact details. None of these makes a site spam alone, but together with other signals they paint a picture of a throwaway site.
- Domain age and TLD — weak signals with small weights: spammers favour fresh domains and cheap TLDs, but plenty of honest sites use them too.
If it looks like a hack
- Open the page in Search Console → URL Inspection → View crawled page and compare the HTML with what you see in a browser.
- Check the Security Issues and Manual Actions reports.
- Look for foreign code: User-Agent and Referer conditions in
.htaccess,index.phpand the theme’sfunctions.php, recently modified files, unknown plugins and admin users. - Update the CMS, theme and plugins and change every password (hosting, FTP, database, admin) and API key.
- Re-check here and with the website security scanner; after cleaning up, request a review in Search Console.
Vetting a site before buying a link
Check both the home page and the exact page where your link would go. Red flags: a score above 30, a footer linking to dozens of unrelated sites, outbound casino and pharma links on an off-topic site, cloaking, or a blacklisted domain. Then look at DR and its history and backlinks — a sharp rise in links without a rise in traffic is another warning sign.
Limitations
We check one page and do not run JavaScript. Cloaking that recognises the real Googlebot by IP address cannot be seen from outside — only Search Console shows it. Spamhaus and URIBL do not answer every resolver; when a list does not answer, we say “no data” rather than “clean”.
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