Screaming Frog SEO Spider
SafeUser-agent: Screaming Frog SEO Spider
Category: SEO Tools
SEO impact if blocked: 0/10
Screaming Frog
1 crawler operated by Screaming Frog
https://www.screamingfrog.co.uk/Who Screaming Frog is, for site owners
Screaming Frog operates 1 crawler in our directory, filed under SEO Tools. Its crawl behaviour is rated safe.
Blocking Screaming Frog carries an SEO impact score of 0/10. Blocking impact is rated: Varies - Evaluate before blocking.
Our recommendation for Screaming Frog: Generally safe to allow; provides legitimate crawling value.
Screaming Frog at a glance
| Operator | Screaming Frog |
|---|---|
| Crawler in directory | 1 |
| Categories | SEO Tools |
| SEO impact if blocked | 0/10 |
| Crawl behaviour | 1 rated safe |
| Website | www.screamingfrog.co.uk |
| Official crawler docs | Screaming Frog crawler documentation |
Crawler operated by Screaming Frog
What Screaming Frog's crawlers are for
Screaming Frog runs 1 crawler in our database. Grouped by the job each one does:
- a utility crawler:
Screaming Frog SEO Spider
The highest-priority token is Tier 4. That makes Screaming Frog a lower-priority operator for most sites: worth a deliberate decision, but rarely the one that decides your visibility.
How site owners treat Screaming Frog
None of Screaming Frog's tokens were among the names tracked in our robots.txt study of the Tranco top 10,000, which usually means few large sites write rules for them yet. Your own logs are the best evidence of how often they visit.
Writing one policy for Screaming Frog
A robots.txt file cannot say "Screaming Frog"; it can only name Screaming Frog's tokens, one group at a time. With a single token, one group is the whole policy.
# One token controls everything Screaming Frog fetches through it
User-agent: Screaming Frog SEO Spider
Disallow: /private/
Allow: /- Decide per job, not per company. Training, search and user-triggered fetching have different trade-offs, even from the same operator.
- Name every token you mean. A token you leave out follows
User-agent: *. - Repeat shared rules. A named group ignores the
*group, so copy anyDisallowlines you still want it to obey. - Verify from outside. Run the LLM crawler checker after any change to see the result for each Screaming Frog token, including firewall refusals.
Test yourself: does User-agent: Screaming Frog block all of Screaming Frog's crawlers?
No. robots.txt matches crawler tokens, not company names. Use the token Screaming Frog SEO Spider.
Test yourself: if you block one Screaming Frog token, are the others blocked too?
No. Each token is read separately. Blocking one leaves the rest following whatever group applies to them.
Each Screaming Frog crawler, explained
A one-paragraph brief for every Screaming Frog token in our database, covering what it does, how it treats robots.txt and how often large sites write rules for it:
- Screaming Frog SEO Spider (
Screaming Frog SEO Spider, Tier 4): a utility crawler that checks pages for an SEO, uptime or analytics service. Rated safe. Screaming Frog SEO Spider's operator does not clearly document how it treats robots.txt. Write the Screaming Frog SEO Spider rule anyway, then confirm in your logs that its requests stop. Not tracked in our robots.txt study.
Common mistakes with Screaming Frog's crawlers
The errors we see most often with Screaming Frog's crawlers in the files and firewalls we test:
- Treating Screaming Frog's crawlers as an AI or search crawler. Blocking it has little effect on visibility; decide based on load and what it does with your data.
- Relying on robots.txt alone when Screaming Frog's crawlers is rated caution or aggressive. Back the rule with a server-side block.
- Blocking Screaming Frog's crawlers by IP alone. Ranges change; match the token and verify with logs.
All three hide inside a file that looks correct, so check Screaming Frog's crawlers from outside after every change.
What our own data shows about Screaming Frog
Everything below comes from the AI Crawler Check bot database and our two most recent robots.txt scans of the Tranco top 10,000, not from Screaming Frog's marketing. Screaming Frog has one token in our database, so the whole picture fits in one place.
Screaming Frog SEO Spider in our records
We first recorded Screaming Frog SEO Spider on March 17, 2026. Screaming Frog documents it on screamingfrog.co.uk, and we recheck that page before each release. No file in our top-10,000 scans names Screaming Frog SEO Spider, so any rule you write for it puts you ahead of almost every large site.
Among the 19 SEO tools in our database, Screaming Frog SEO Spider sits 13th by priority (Tier 4), level with AhrefsBot, AhrefsSiteAudit, AwarioBot, AwarioRssBot. 16 of the 19 share its safe rating. Other operators with a crawler that checks pages for an SEO, uptime or analytics service: OAI-AdsBot (OpenAI, Tier 2), AdIdxBot (Microsoft, Tier 3), AdsBot-Google (Google, Tier 3), AdsBot-Google-Mobile (Google, Tier 3), Baiduspider-ads (Baidu, Tier 3). A policy for Screaming Frog SEO Spider is usually a policy for these too.
A decision record for Screaming Frog SEO Spider
Teams that review crawlers once a quarter keep one short entry per token, so anyone can see why a rule exists and when it was last checked. Filled in from our data, the Screaming Frog SEO Spider entry reads:
- Operator and job: Screaming Frog; it checks pages for an SEO, uptime or analytics service.
- Priority and behaviour: Tier 4, rated safe, blocking impact not documented.
- Suggested starting point: Allow by default; revisit if it costs you bandwidth.
- Enforcement: Screaming Frog SEO Spider's operator does not clearly document how it treats robots.txt. Write the Screaming Frog SEO Spider rule anyway, then confirm in your logs that its requests stop.
User-agent: Screaming Frog SEO Spider
Allow: /Paste the line into the validator with one of your own URLs before it goes live. Revisit the Screaming Frog SEO Spider entry once a quarter, or when Screaming Frog publishes a new token next to it.
Checking Screaming Frog SEO Spider on your own site
Because Screaming Frog runs only Screaming Frog SEO Spider in our records, one check covers the whole operator. Search your access logs for the string Screaming Frog SEO Spider over the last 30 days, note how many requests it made and which paths it asked for, then compare that with what your robots.txt allows. Match the requests against what Screaming Frog publishes about the crawler, since that page is the only authority on its behaviour. A Tier 4 crawler rated safe rarely needs more than a quarterly look, and our log checker does the counting for you.
How top sites treat Screaming Frog's crawlers
From our robots.txt study of the Tranco top 10,000 (5,583 valid files, fetched October 20, 2026):
None of the tokens for Screaming Frog's crawlers is tracked by name in our study. For scale, 20.1% of top-site files block at least one AI training crawler and 4.3% refuse every unnamed crawler with User-agent: * and Disallow: /, which would catch Screaming Frog's crawlers too.
More questions about Screaming Frog
- Will blocking Screaming Frog affect my Google rankings?
- Only if one of its tokens is a Google search crawler. None of Screaming Frog's tokens are Googlebot, so classic Google rankings are unaffected.
- How quickly does a robots.txt change take effect for Screaming Frog?
- Crawlers cache robots.txt, commonly for up to a day. Expect a change to apply within about 24 hours, and confirm it in your logs.
- Can I allow Screaming Frog on some sections and block it on others?
- Yes. Inside the group for
Screaming Frog SEO Spider, addDisallowlines for the paths to keep private andAllowlines for exceptions. The longest matching rule wins. - Does blocking Screaming Frog delete content it already collected?
- No. robots.txt only controls future visits. For content already collected, check whether Screaming Frog offers a removal or opt-out process.
- Is a firewall block better than robots.txt for Screaming Frog?
- A firewall enforces the decision, while robots.txt asks politely. Many operators recommend robots.txt because blocking their IPs can stop them reading your rules at all. Use robots.txt first, and add a firewall rule only if requests continue.
A five-minute Screaming Frog review
- Confirm the token. Compare the user-agent in your logs with the tokens listed on this page. A close spelling is not the same crawler.
- Decide the outcome per crawler. Use the briefs above to choose allow, limit or block for each token.
- Write the group. Add or edit one
User-agentgroup per decision and repeat any shared rules inside it. - Publish and wait. Allow about a day for crawlers to fetch the new file.
- Confirm the result. Check your logs, then run the GPTBot and ClaudeBot access check to see the outcome from outside, including any firewall layer.
How to block or allow Screaming Frog in robots.txt
This rule covers the single crawler Screaming Frog operates. Add it to the robots.txt file at the root of your domain.
Block Screaming Frog completely
User-agent: Screaming Frog SEO Spider
Disallow: /
Allow Screaming Frog explicitly
User-agent: Screaming Frog SEO Spider
Allow: /
These Screaming Frog rules ask; they do not enforce. If a Screaming Frog token ignores them, block it at the server or CDN. Paths are case-sensitive, and each rule matches the token, not the full user-agent string.
Frequently asked questions about Screaming Frog
What crawler does Screaming Frog run?
Screaming Frog operates 1 crawler in our directory: Screaming Frog SEO Spider (user-agent Screaming Frog SEO Spider).
Should I block Screaming Frog?
Generally safe to allow; provides legitimate crawling value. The SEO impact score for blocking is 0/10, where 10 means blocking costs you the most visibility.
How do I block Screaming Frog in robots.txt?
Add the following to robots.txt at your domain root: User-agent: Screaming Frog SEO Spider then Disallow: /.
Does blocking Screaming Frog hurt my search rankings?
Blocking impact is rated: Varies - Evaluate before blocking. Google's own ranking crawler is Googlebot, which this operator does not run, so blocking Screaming Frog does not by itself remove you from Google's index. What it can change is whether AI assistants and analytics tools can read your pages.