Snap URL Preview Service
Snapchat URL preview web crawler
About this crawler
Snap URL Preview Service is a web crawler identified by the regular-expression pattern Snap URL Preview Service in the User-Agent request header. It is categorised as social-preview. Use the regex above to detect, log, allow, or block Snap URL Preview Service traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- Snap URL Preview Service
- Pattern
Snap URL Preview Service- Tags
- social-preview
- Reference
- https://www.snap.com/
- Added
- 2022/11/13
- rDNS suffixes
.snapchat.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely Snap URL Preview Service with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.snapchat.com
Sample User-Agent strings
Snap URL Preview Service; bot; snapchat; https://developers.snap.com/robots
Block this crawler
robots.txt — disallow Snap URL Preview Service:
User-agent: Snap URL Preview Service
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Snap URL Preview Service [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Snap URL Preview Service") {
return 403;
}
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