Instapaper
Read-later service crawler fetching articles for offline reading storage
About this crawler
Instapaper is a web crawler identified by the regular-expression pattern Instapaper\/ in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block Instapaper traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
No block-rate data for this crawler.
Technical details
- Name
- Instapaper
- Pattern
Instapaper\/- Tags
- seo
- Reference
- https://www.instapaper.com/publishers
- Added
- 2026/04/17
- rDNS suffixes
.instapaper.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely Instapaper 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.
.instapaper.com
Sample User-Agent strings
Instapaper/4.0Instaparser/1.0
Block this crawler
robots.txt — disallow Instapaper:
User-agent: Instapaper
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Instapaper\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Instapaper\\/") {
return 403;
}
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