NewsBlur
NewsBlur feed reader web crawler bot
About this crawler
NewsBlur is a web crawler identified by the regular-expression pattern NewsBlur in the User-Agent request header. It is categorised as feed-reader. Use the regex above to detect, log, allow, or block NewsBlur traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- NewsBlur
- Pattern
NewsBlur- Tags
- feed-reader
- Reference
- https://www.newsblur.com/
- Added
- 2023/09/08
- rDNS suffixes
.newsblur.com- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely NewsBlur 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.
.newsblur.com
Sample User-Agent strings
NewsBlur Feed Fetcher - 1 subscriber - http://www.newsblur.com/site/0000000/webpage (Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.1 Safari/605.1.15)
Block this crawler
robots.txt — disallow NewsBlur:
User-agent: NewsBlur
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} NewsBlur [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "NewsBlur") {
return 403;
}
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