Bot IP: 173.252.79.9
Bot Name: Facebook Crawler
facebookexternalhit is the user agent for Facebook's web crawler, used to fetch and preview content when links are shared on Facebook platforms.
Likely legitimate
Track-A-Bot Trust Score: 81/100
81
score
0255075100
Why Track-A-Bot rated this IP (tap to expand)
Identity
- ✅ Marked as bot traffic
- ✅ Bot name present
- ✅ User-agent matches bot name
- ✅ User-agent includes identity link/email
Hostname
- ✅ Hostname observed
- ℹ️ Hostname does not resemble bot name
- ℹ️ Hostname status not verified
- ✅ No hostname mismatch flags
Behavior
- ℹ️ No /robots.txt request observed
- ✅ No referrer (typical crawler behavior)
- ⚠️ Many non-200/304 responses
- 📌 Visits: 4
- ⏱️ Age: 323h
Penalties
- ✅ No major spoof pattern
- ✅ No fingerprint fields
- ✅ Cookies not enabled
- ✅ No connection type
Total visits: 114 First seen: Mar 28th, 2024 4:48 PM Last seen: Dec 12th, 2025 7:23 PM
Known Hostname(s)
fwdproxy-vll-009.fbsv.net
Known User Agent(s)
meta-externalagent/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
Common User-Agent Tokens
These are identifiers found inside user-agent strings we observed for facebookexternalhit.
Token
Seen
First seen
Last seen
facebookexternalhit/1.1
34,305
3/16/24
12/12/25
facebookexternalhit/1.1
34,305 seen
facebookexternalhit/1.1
34,305 seen
First
3/16/24
Last
12/12/25
10_11_1
2,004
6/8/24
12/12/25
10_11_1
2,004 seen
10_11_1
2,004 seen
First
6/8/24
Last
12/12/25
facebot
2,004
6/8/24
12/12/25
facebot
2,004 seen
facebot
2,004 seen
First
6/8/24
Last
12/12/25
twitterbot/1.0
2,004
6/8/24
12/12/25
twitterbot/1.0
2,004 seen
twitterbot/1.0
2,004 seen
First
6/8/24
Last
12/12/25
acebookexternalhit/1.0
1
12/12/25
12/12/25
acebookexternalhit/1.0
1 seen
acebookexternalhit/1.0
1 seen
First
12/12/25
Last
12/12/25
Identity Links
These are URLs we observed in association with facebookexternalhit (often used as an identity, help, or policy link).
URL
Seen
First seen
Last seen
First
3/16/24
Last
12/12/25
First
12/12/25
Last
12/12/25
First
5/14/24
Last
12/12/25
Bot FAQ for this IP
Why is meta-webindexer visiting my website?
The IP address 173.252.79.9, associated with the bot name "meta-webindexer," is visiting websites to retrieve and index web content. According to the user agent and hostname information (such as 'fwdproxy-vll-009.fbsv.net'), these visits are likely related to Meta (Facebook) services that gather data for features like link previews or content sharing. The bot typically accesses public pages and metadata to generate accurate previews or improve search and sharing experiences on Meta platforms. If these visits are unexpected or unwanted, consider reviewing your site's robots.txt file to manage crawler access, monitoring server logs for visit patterns, and using allow/block lists or web application firewall (WAF) rules as needed.
What does meta-webindexer do?
meta-webindexer is a web crawler that appears to operate on behalf of Meta (Facebook), as indicated by its user agent string and reverse DNS hostname. Its primary function is to fetch and index publicly available web content, often for the purpose of generating link previews or updating shared content on Meta's platforms. The bot typically requests standard pages and metadata, such as Open Graph tags, to ensure accurate representation when links are shared. To verify its identity, check the reverse DNS of the IP address for domains ending in 'fbsv.net' and review the user agent string. Site owners can control access using robots.txt directives, monitor visit frequency, and implement rate limiting if necessary.
Is meta-webindexer safe?
Based on the available data, meta-webindexer appears to be a legitimate crawler associated with Meta (Facebook), using identifiable user agents and hostnames. There are no indications of malicious activity in the recent visit patterns. However, as with any automated traffic, it is important to verify authenticity and monitor for unusual behavior. Recommended steps include: performing a reverse DNS lookup to confirm the IP resolves to a Meta-owned domain, checking the user agent string for accuracy, setting appropriate rules in robots.txt, monitoring server logs for excessive requests, and applying rate limits or WAF rules if needed. If unwanted, the crawler can be managed or blocked using standard web server configurations.
This page provides a detailed lookup for the bot with the IP address of 173.252.79.9, based on real-world traffic observed across websites using Track-A-Bot software. Use this information to verify whether activity from this IP belongs to a legitimate search engine crawler, or to analyze bot behavior on your website.