Track-A-Bot website logo and homepage link

Bot IP: 173.252.79.7

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: 87/100
0255075100
Why Track-A-Bot rated this IP (tap to expand)

Identity

  • βœ… Marked as bot traffic
  • βœ… Bot name present
  • βœ… User-agent matches bot name
  • βœ… User-agent includes identity link/email

Hostname

  • βœ… Hostname observed
  • ℹ️ Hostname does not resemble bot name
  • ℹ️ Hostname status not verified
  • βœ… No hostname mismatch flags

Behavior

  • ℹ️ No /robots.txt request observed
  • βœ… No referrer (typical crawler behavior)
  • βœ… Mostly 200/304 responses
  • πŸ“Œ Visits: 40
  • ⏱️ Age: 4700h

Penalties

  • βœ… No major spoof pattern
  • βœ… No fingerprint fields
  • βœ… Cookies not enabled
  • βœ… No connection type
Total visits: 127 First seen: Apr 16th, 2024 3:29 AM Last seen: Dec 12th, 2025 7:23 PM
Known Hostname(s)
fwdproxy-vll-007.fbsv.net
Known User Agent(s)
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
meta-externalagent/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)
Known Accepted Encoding(s)
deflate, gzip

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
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
First 6/8/24
Last 12/12/25
facebot
2,004
6/8/24
12/12/25
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
First 6/8/24
Last 12/12/25
acebookexternalhit/1.0
1
12/12/25
12/12/25
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
www.facebook.com/externalhit_uatext.php 32,295 seen www.facebook.com
First 3/16/24
Last 12/12/25
2
12/12/25
12/12/25
faviconkit.com/robots 2 seen faviconkit.com
First 12/12/25
Last 12/12/25
First 5/14/24
Last 12/12/25

Bot FAQ for this IP


Why is meta-externalagent visiting my website?

The meta-externalagent bot is visiting websites to retrieve and analyze web page content, typically for the purpose of social media sharing and preview generation. The user agent string and hostname indicate that this crawler is associated with Facebook's web sharing tools. When a link is shared on Facebook or its related platforms, meta-externalagent may access the linked page to gather metadata such as titles, descriptions, and images for link previews. This activity is generally triggered when users share URLs on Facebook services.

What does meta-externalagent do?

meta-externalagent is a web crawler operated by Facebook, as indicated by its user agent string and the associated hostname (fwdproxy-vll-007.fbsv.net). Its primary function is to fetch web pages in order to generate link previews and extract metadata for content shared on Facebook and related platforms. The bot requests pages to collect Open Graph tags and other relevant information that enhances how links appear when posted on social media. This process helps ensure that shared links display accurate and up-to-date information.

Is meta-externalagent safe?

Based on the user agent and hostname, meta-externalagent appears to be a legitimate crawler from Facebook. Its visits are generally safe and intended for metadata extraction. However, as with any automated traffic, it is important to verify authenticity and monitor activity. Recommended steps include: 1) Perform a reverse DNS lookup to confirm the IP resolves to a Facebook-owned domain; 2) Check the user agent string for accuracy; 3) Review server logs for unusual or excessive requests; 4) Use robots.txt to control crawler access if needed; 5) Implement rate limiting or WAF rules to mitigate unwanted behavior. If suspicious activity is detected, consider blocking the IP or contacting Facebook for further clarification.

This page provides a detailed lookup for the bot with the IP address of 173.252.79.7, 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.