FlipboardProxy

social-preview FlipboardProxy

Proxy fetching and preparing website elements for Flipboard

About this crawler

FlipboardProxy is a web crawler identified by the regular-expression pattern FlipboardProxy in the User-Agent request header. It is categorised as social-preview. Use the regex above to detect, log, allow, or block FlipboardProxy traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

0.39%
latest snapshot
2026-06-04
matched key: FlipboardProxy
2026-05-012026-06-040.55%

Technical details

Name
FlipboardProxy
Pattern
FlipboardProxy
Tags
social-preview
Reference
https://about.flipboard.com/browserproxy/
Added
2018/06/27
rDNS suffixes
.flipboard.com, .flipboard.net
Instances
5 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely FlipboardProxy 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.

Sample User-Agent strings

Mozilla/5.0 (compatible; FlipboardProxy/1.1; +http://flipboard.com/browserproxy)
Mozilla/5.0 (compatible; FlipboardProxy/1.2; +http://flipboard.com/browserproxy)
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (FlipboardProxy/1.1; +http://flipboard.com/browserproxy)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:28.0) Gecko/20100101 Firefox/28.0 (FlipboardProxy/1.1; +http://flipboard.com/browserproxy)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:49.0) Gecko/20100101 Firefox/49.0 (FlipboardProxy/1.2; +http://flipboard.com/browserproxy)

Block this crawler

robots.txt — disallow FlipboardProxy:

User-agent: FlipboardProxy Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} FlipboardProxy [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "FlipboardProxy") { return 403; }
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