MO

Microsoft Office

http-library Microsoft Office

Microsoft Office applications

About this crawler

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

Block-rate · top 25k sites

0.065%
latest snapshot
2026-06-04
matched key: Microsoft Data Access
2026-05-012026-06-040.22%

Technical details

Name
Microsoft Office
Pattern
Microsoft Office
Tags
http-library
Added
2026/05/09
Instances
24 known sample(s)

Sample User-Agent strings

Microsoft Office Excel 2013
Microsoft Office Excel 2014
Microsoft Office Excel 2014 (16.0.6528) Windows NT 10.0
Microsoft Office Existence Discovery
Microsoft Office Mobile/15.0
Microsoft Office OneNote 2013
Microsoft Office PowerPoint 2013
Microsoft Office PowerPoint 2013 (15.0.4420) Windows NT 6.2
Microsoft Office PowerPoint 2013 (15.0.4641) Windows NT 6.2
Microsoft Office PowerPoint 2013 (15.0.4797) Windows NT 10.0
Microsoft Office PowerPoint 2013 (15.0.4797) Windows NT 6.2
Microsoft Office PowerPoint 2013 (15.0.4805) Windows NT 6.1
Microsoft Office PowerPoint 2013 (15.0.4805) Windows NT 6.2
Microsoft Office PowerPoint 2013 (15.0.4815) Windows NT 10.0
Microsoft Office PowerPoint 2014
Microsoft Office Word 2013
Microsoft Office Word 2013 (15.0.4623) Windows NT 6.2
Microsoft Office Word 2013 (15.0.4701) Windows NT 6.1
Microsoft Office Word 2013 (15.0.4797) Windows NT 10.0
Microsoft Office Word 2013 (15.0.4805) Windows NT 10.0

+ 4 more samples in crawlers.json

Block this crawler

robots.txt — disallow Microsoft Office:

User-agent: Microsoft Office Disallow: /

Apache .htaccess — return 403:

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

Nginx — return 403 inside a server block:

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