What powers 
facebookmail.com?
Last seen Nov 2023 · 3 technologies across 3 categories
Development
Microsoft Visual Studio
since Jul 2023
Security
HSTS
since Jul 2023
Web frameworks
Microsoft ASP.NET
since Aug 2022
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Open Page Rank
3.94 / 10 · ranked #613,978 of all domains
26 referring domains · OpenPageRank
Infrastructure
- Hosted on FACEBOOK - Facebook, Inc. (157.240.14.15, IPv6)
- DNS: facebook.com
- Email: facebook.com
- Email security: SPF (hard fail), DMARC reject, MTA-STS
- SSL: DigiCert, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 1,267,881, 3 hosts
- Verified with: Apple Business, Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| view.facebook-research.facebookmail.com | 3 |
| view.mc.facebookmail.com | 1 |