VelenPublicWebCrawler
Operated by Velen
Quick Facts
- User-Agent:
- VelenPublicWebCrawler
- Category:
- Data Scrapers
- Operator:
- Velen
- Safety:
- Safe
- Blocking Impact:
- Low - No SEO ranking impact
- SEO Impact Score:
- 2/10
- Official docs:
- velen.io
Confirmed by the operator
Velen names VelenPublicWebCrawler on its own documentation page, linked above. The token, purpose and robots.txt behaviour on this profile come from that page, re-checked on October 19, 2026.
What is VelenPublicWebCrawler?
A crawler used for public web data collection, often for market research.
A crawler used for public web data collection, often for market research.
VelenPublicWebCrawler is a data aggregation crawler. Unlike search bots or AI crawlers, its purpose is typically to collect content for private datasets, price monitoring, or research. Blocking VelenPublicWebCrawler via robots.txt or at the server level has NO negative SEO impact. If you see excessive crawl volume from this bot in your logs, a hard block is recommended.
What happens if you block VelenPublicWebCrawler?
How to block VelenPublicWebCrawler with robots.txt
<code>User-agent: VelenPublicWebCrawler</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.
Is VelenPublicWebCrawler safe to allow?
VelenPublicWebCrawler is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).What does VelenPublicWebCrawler do?
Understanding VelenPublicWebCrawler's purpose helps you decide whether to allow or block it.
- Extracts content, prices, or data from websites
- May be used for competitive intelligence
- Often operates without explicit permission
- Can increase server load and bandwidth usage
- May violate terms of service or copyright
VelenPublicWebCrawler in context
VelenPublicWebCrawler is a utility crawler operated by Velen. 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 safe and its blocking impact is low. So the decision about VelenPublicWebCrawler rests on what you want from Velen, not on its behaviour. How we rate safety and impact.
How site owners treat VelenPublicWebCrawler
Our robots.txt study of the Tranco top 10,000 did not track VelenPublicWebCrawler as a named token, so we do not publish an adoption figure for it. If you run a large site, your own logs are the best evidence of how often it visits.
Does it follow robots.txt?
VelenPublicWebCrawler's operator does not clearly document how it treats robots.txt. Write the VelenPublicWebCrawler rule anyway, then confirm in your logs that its requests stop.
Velen crawlers and close alternatives
Velen runs only this one crawler in our database, so a single User-agent: VelenPublicWebCrawler group controls everything Velen 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 VelenPublicWebCrawler is usually a decision about the whole group, so check how your file treats these too.
We first recorded VelenPublicWebCrawler on March 17, 2026. Velen documents it on velen.io, and we recheck that page before each release.
Which rule VelenPublicWebCrawler actually follows
VelenPublicWebCrawler reads exactly one group in robots.txt, the most specific one that names VelenPublicWebCrawler, and never combines rules across groups. This short file shows the trap:
User-agent: *
Disallow: /private/
User-agent: VelenPublicWebCrawler
Disallow: /drafts/
- Find the group. VelenPublicWebCrawler looks for a group naming
VelenPublicWebCrawler. One exists, so it ignoresUser-agent: *completely. - Apply only that group. It is refused
/drafts/and nothing else. - The surprise.
/private/is open to VelenPublicWebCrawler, 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 VelenPublicWebCrawler if the file also has a User-agent: VelenPublicWebCrawler group?
No. Once a group names it, VelenPublicWebCrawler reads only that group. Put every rule you want it to follow inside its own group.
Test yourself: will blocking VelenPublicWebCrawler remove your pages from AI answers?
Often, yes. VelenPublicWebCrawler is a utility crawler, so pages it cannot fetch can drop out of the answers or results it supports.
Test yourself: is User-agent: velenpublicwebcrawler the same as User-agent: VelenPublicWebCrawler?
Yes. RFC 9309 makes user-agent matching case-insensitive. Paths are a different story: Disallow: /Blog/ does not block /blog/.
Related: how AI engines choose their sources
Should you allow VelenPublicWebCrawler? 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 VelenPublicWebCrawler 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 safe in our database. |
Check VelenPublicWebCrawler on your own site
- Open
/robots.txton your domain and search forVelenPublicWebCrawler. If it is not named, it followsUser-agent: *. - List the
Disallowlines in the group VelenPublicWebCrawler 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 VelenPublicWebCrawler even when robots.txt allows it, and that never shows in the file.
- Run our AI crawlability checker to see how VelenPublicWebCrawler and every other crawler we track are treated in one pass, including firewall refusals.
Common mistakes with VelenPublicWebCrawler
The errors we see most often with VelenPublicWebCrawler in the files and firewalls we test:
- Treating VelenPublicWebCrawler 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 VelenPublicWebCrawler is rated caution or aggressive. Back the rule with a server-side block.
- Blocking VelenPublicWebCrawler by IP alone. Ranges change; match the token and verify with logs.
All three hide inside a file that looks correct, so check VelenPublicWebCrawler from outside after every change.
Spotting VelenPublicWebCrawler in your logs
robots.txt says what VelenPublicWebCrawler 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 "VelenPublicWebCrawler" /var/log/nginx/access.log \
| awk '{print $4}' | cut -d: -f1 | sort | uniq -c
And this shows which paths it requested most, which is the quickest way to see whether your Disallow lines are being respected:
grep -iE "VelenPublicWebCrawler" /var/log/nginx/access.log \
| awk '{print $7}' | sort | uniq -c | sort -rn | head -20
Check the requests are genuine
Anyone can send the VelenPublicWebCrawler user-agent, so confirm the source before acting on a match:
VelenPublicWebCrawler: we hold no published IP list, so use reverse DNS where the operator documents a hostname and treat an unverifiable VelenPublicWebCrawler request with caution.
Frequently Asked Questions
What is the official user-agent string for VelenPublicWebCrawler?
VelenPublicWebCrawler. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from VelenPublicWebCrawler by performing a reverse-DNS lookup on the source IP - legitimate bots resolve back to their operator's domain.Is VelenPublicWebCrawler safe?
VelenPublicWebCrawler is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).Will blocking VelenPublicWebCrawler hurt my SEO?
How do I block VelenPublicWebCrawler in robots.txt?
/robots.txt file:User-agent: VelenPublicWebCrawler Disallow: /
This instructs VelenPublicWebCrawler not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g.,
Disallow: /blog/). Note: robots.txt is publicly readable - any bot or human can inspect it at yourdomain.com/robots.txt.Does VelenPublicWebCrawler respect robots.txt?
How do I verify if VelenPublicWebCrawler is crawling my site?
VelenPublicWebCrawler (case-insensitive grep: grep -i "VelenPublicWebCrawler" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For VelenPublicWebCrawler specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).What is the crawl frequency of VelenPublicWebCrawler?
User-agent: VelenPublicWebCrawler Crawl-delay: 10(10 second delay between requests).
Can I block VelenPublicWebCrawler from specific pages only?
Disallow: / you can restrict VelenPublicWebCrawler to specific paths:User-agent: VelenPublicWebCrawler Disallow: /private/ Disallow: /staging/ Allow: /
This allows VelenPublicWebCrawler everywhere except the listed paths. Path matching in robots.txt uses prefix matching -
Disallow: /private/ blocks /private/page.html but NOT /public/private/.Is VelenPublicWebCrawler causing high server load?
1. Add
Crawl-delay: 30 below the User-agent directive in robots.txt.2. Rate-limit the user-agent via Nginx's
limit_req_zone or Apache's mod_ratelimit.3. Block it outright at Cloudflare WAF with rule:
http.user_agent contains "VelenPublicWebCrawler".4. Use fail2ban to auto-block IPs exceeding request thresholds.