Factset_spyderbot
Operated by FactSet
Quick Facts
- User-Agent:
- Factset_spyderbot
- Category:
- Scrapers
- Operator:
- FactSet
- Safety:
- Use Caution
- Blocking Impact:
- Low - No SEO ranking impact
- SEO Impact Score:
- 2/10
- Official docs:
- None published by FactSet
Reported, not operator documented
FactSet has not published a crawler page that names Factset_spyderbot. It is listed here on our own evidence. Verified by AI Crawler Check: 93 of the 5,583 valid robots.txt files in the Tranco top 10,000 carry a rule for Factset_spyderbot, so site owners treat it as a real crawler name (how we measure this). That proves the spelling is in use, not who sends it. Reported FactSet crawler. No vendor page.
What that means for you: the Factset_spyderbot rule on this page is the best available spelling, but FactSet has made no statement of purpose, crawl rate or robots.txt compliance. Treat a Factset_spyderbot request in your logs as a clue, not proof of who sent it, and add a firewall rule if that traffic matters to you. If the operator publishes documentation, this profile moves to Official docs.
What is Factset_spyderbot?
Factset_spyderbot is a developer-facing extraction agent operated by FactSet. It fetches and structures web content on behalf of applications and AI agents built on FactSet's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.
Factset_spyderbot is a developer-facing extraction agent operated by FactSet. It fetches and structures web content on behalf of applications and AI agents built on FactSet's platform. Traffic volume depends on how third-party developers configure it, so monitor your logs if you see heavy activity.
Factset_spyderbot uses the user-agent token Factset_spyderbot. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.
What happens if you block Factset_spyderbot?
User-agent / Disallow: / without any SEO penalty.How to block Factset_spyderbot with robots.txt
<code>User-agent: Factset_spyderbot</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.
Is Factset_spyderbot safe to allow?
What does Factset_spyderbot do?
Understanding Factset_spyderbot's purpose helps you decide whether to allow or block it.
- Extracts and structures web content for developer applications
- Powers AI agents built on the operator platform
- Volume depends on third-party developer configuration
- Monitor logs if you notice heavy activity
- Can be rate-limited via robots.txt or server rules
Factset_spyderbot in context
Factset_spyderbot is a utility crawler operated by FactSet. In plain terms, it harvests pages for a dataset or data product. Our database files it under data scrapers and ranks it Tier 6, the lowest priority: scrapers and tools that offer most sites little or nothing. 37 of the 39 data scrapers in our database share this tier.
Its safety rating is caution and its blocking impact is low. So the decision about Factset_spyderbot rests on what you want from FactSet, not on its behaviour. How we rate safety and impact.
How site owners treat Factset_spyderbot
In our own scan of the Tranco top 10,000 (5,583 valid robots.txt files), 93 files (1.7%) name Factset_spyderbot in a User-agent line. That shows site owners treat the token as a real crawler worth a rule. It does not, on its own, prove who operates it.
Does it follow robots.txt?
Factset_spyderbot's operator does not clearly document how it treats robots.txt. Write the Factset_spyderbot rule anyway, then confirm in your logs that its requests stop.
FactSet crawlers and close alternatives
FactSet runs only this one crawler in our database, so a single User-agent: Factset_spyderbot group controls everything FactSet fetches through it.
Other data scrapers that do the same job (harvests pages for a dataset or data product) include Amazon Kendra from Amazon, ApifyBot from Apify, Barkrowler from Babbar, BLEXBot from WebMeUp, coccocbot-web from Unknown, Crawl4AI from Unknown. Deciding about Factset_spyderbot is usually a decision about the whole group, so check how your file treats these too.
We first recorded Factset_spyderbot on March 17, 2026. We could not find a page where FactSet names it, so treat the token as reported rather than documented.
Which rule Factset_spyderbot actually follows
Factset_spyderbot reads exactly one group in robots.txt, the most specific one that names Factset_spyderbot, and never combines rules across groups. This short file shows the trap:
User-agent: *
Disallow: /private/
User-agent: Factset_spyderbot
Disallow: /drafts/- Find the group. Factset_spyderbot looks for a group naming
Factset_spyderbot. One exists, so it ignoresUser-agent: *completely. - Apply only that group. It is refused
/drafts/and nothing else. - The surprise.
/private/is open to Factset_spyderbot, because that rule lives in the*group it no longer reads. To keep it out of both, repeatDisallow: /private/inside its own group.
Test yourself: does a rule under User-agent: * apply to Factset_spyderbot if the file also has a User-agent: Factset_spyderbot group?
No. Once a group names it, Factset_spyderbot reads only that group. Put every rule you want it to follow inside its own group.
Test yourself: will blocking Factset_spyderbot remove your pages from AI answers?
Often, yes. Factset_spyderbot is a utility crawler, so pages it cannot fetch can drop out of the answers or results it supports.
Related: how AI engines choose their sources
Test yourself: is User-agent: factset_spyderbot the same as User-agent: Factset_spyderbot?
Yes. RFC 9309 makes user-agent matching case-insensitive. Paths are a different story: Disallow: /Blog/ does not block /blog/.
Should you allow Factset_spyderbot? Decide by situation
| If you are... | Recommended setting |
|---|---|
| You publish content and want AI answers to cite it | Low stakes either way. It does not decide whether AI answers cite you. |
| You license content and want to stop AI training | Blocking it does not stop training, because Factset_spyderbot is a utility crawler. Block the operator's training crawler instead. |
| You run an online shop | Consider blocking it, especially on price and stock pages that competitors scrape. |
| Your server is under load from bots | Rate-limit before blocking. It is rated caution in our database. |
Check Factset_spyderbot on your own site
- Open
/robots.txton your domain and search forFactset_spyderbot. If it is not named, it followsUser-agent: *. - List the
Disallowlines in the group Factset_spyderbot follows and test your key URLs against them; the longest match wins, andAllowwins a tie. - Look beyond the file. A firewall or bot manager can refuse Factset_spyderbot even when robots.txt allows it, and that never shows in the file.
- Run our robots.txt AI crawler test to see how Factset_spyderbot and every other crawler we track are treated in one pass, including firewall refusals.
Common mistakes with Factset_spyderbot
The errors we see most often with Factset_spyderbot in the files and firewalls we test:
- Treating Factset_spyderbot 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 Factset_spyderbot is rated caution or aggressive. Back the rule with a server-side block.
- Blocking Factset_spyderbot by IP alone. Ranges change; match the token and verify with logs.
All three hide inside a file that looks correct, so check Factset_spyderbot from outside after every change.
Spotting Factset_spyderbot in your logs
robots.txt says what Factset_spyderbot may do; your access logs show what it actually did.
Count requests
On a server with standard Nginx or Apache logs, this counts matching requests per day (adjust the log path for your host):
grep -iE "Factset_spyderbot" /var/log/nginx/access.log \
| awk '{print $4}' | cut -d: -f1 | sort | uniq -cAnd this shows which paths it requested most, which is the quickest way to see whether your Disallow lines are being respected:
grep -iE "Factset_spyderbot" /var/log/nginx/access.log \
| awk '{print $7}' | sort | uniq -c | sort -rn | head -20Check the requests are genuine
Anyone can send the Factset_spyderbot user-agent, so confirm the source before acting on a match:
Factset_spyderbot: we hold no published IP list, so use reverse DNS where the operator documents a hostname and treat an unverifiable Factset_spyderbot request with caution.
Frequently Asked Questions
What user-agent string does Factset_spyderbot use?
Factset_spyderbot. Evidence that the spelling is in real use comes from our own robots.txt study: 93 of the 5,583 valid robots.txt files in the Tranco top 10,000 name it (fetched October 20, 2026), not from FactSet, which has not published crawler documentation naming it. Use it in robots.txt as the best available match, and treat a request carrying it as a clue rather than proof of who sent it.Is Factset_spyderbot safe?
Will blocking Factset_spyderbot hurt my SEO?
User-agent / Disallow: / without any SEO penalty.How do I block Factset_spyderbot in robots.txt?
/robots.txt file:User-agent: Factset_spyderbot Disallow: /
This instructs Factset_spyderbot not to crawl any path on your site. To block only specific sections, replace / with the path (e.g.,
Disallow: /blog/).Does Factset_spyderbot respect robots.txt?
Factset_spyderbot will stop a client that chooses to honour it; for enforcement, add a firewall or CDN rule as well.How do I verify if Factset_spyderbot is crawling my site?
Factset_spyderbot (for example grep -i "Factset_spyderbot" /var/log/nginx/access.log). Because the operator publishes no IP ranges or reverse-DNS pattern, a match shows that something used the name, not that FactSet sent it.