Executive summary
facebook.com
Good shape, with a few gaps worth closing this quarter.
Partial coverage: the score is based on 95% of applicable check weight. 1 unverified check(s) are excluded, not counted as failures.
2026-11-15 19:34 UTC
Useful for your IT provider or a colleague. Anyone with the link can view the report.
Track your progress
Fix the findings, then come back and rescan. Your scan history is saved in this browser so you can see exactly what improved.
Spoofing email from this domain is hard.
Traffic to the site is encrypted and the certificate is valid.
Some browser protections are missing.
The domain's infrastructure works, but recommended hardening is missing.
Help someone else check their domain
Share this public report with a colleague. They can review the evidence and check their own domain.
What to do first
- 1.
Turn on DNS signing for your domain
Signing helps resolvers detect forged answers about your domain.
Who can fix it: Your domain registrar or DNS provider
How to verify after the fix
dig +short DS facebook.com
- 2.
Limit what your site shares when visitors click links
This reduces how much page address detail is passed to other websites.
Who can fix it: Your website developer or web host
How to verify after the fix
curl -sIL https://facebook.com/ | grep -i "Referrer-Policy"
A starting point, not a security guarantee.
What this grade means
- Tested hostname
- facebook.com
- Website request
- GET https://facebook.com/ → https://www.facebook.com/
- Scan time
- 2026-11-15 19:34:35 UTC
- Grading method
- Version 2How grading works
- Unverified or excluded checks
- DKIM — digital signature on email · Not detected (common selectors only)
This is a snapshot of the public configuration checks listed in this report. It does not verify the site's owner, business legitimacy, application security, or absence of vulnerabilities. It is not a security certification.
Get the badge
Show the live grade for facebook.com in a README, docs or site footer. The badge links to the public report and refreshes every 24 hours.
Scan shown on this page: 2026-11-15 19:34:35 UTC. The badge may display a cached result for up to 24 hours. Open the linked report to check its scan time.
[](https://getmirror.online/report/facebook.com)<a href="https://getmirror.online/report/facebook.com"><img src="https://getmirror.online/badge/facebook.com.svg" alt="Domain Armor grade"></a>https://getmirror.online/badge/facebook.com.svgScan history
AI fix plan
Pick scans from this browser's history. The AI compares them, explains what changed and builds a prioritized, step-by-step plan.
Scans to analyze
0 of 6 selectedThe current scan is always included.
AI-generated from your scan results only. Review each step before applying it; nothing is sent to or changed on the domain.
Agent access & discovery signals
Optional and unscored — it never changes the grade. Reads up to three public files from this site (robots.txt, llms.txt and /.well-known/security.txt) and reuses the homepage headers already fetched. llms.txt is an emerging proposal, not an official standard. It is informational and does not affect the grade.
Technical detail
Click a check to see the public data, a verification command, a safe fix recommendation and documentation sources.
Email security
25/25Encryption & certificate
25/25Browser protections
23/30DNS infrastructure
8/15Public DNS records
| A | facebook.com | 57.144.204.1 |
| AAAA | facebook.com | 2a03:2880:f366:1:face:b00c:0:25de |
| MX | facebook.com | 10 smtpin.vvv.facebook.com |
| NS | facebook.com | b.ns.facebook.com d.ns.facebook.com a.ns.facebook.com c.ns.facebook.com |
| TXT | facebook.com | facebook-domain-verification=y7isfmi3kzyg1r4wophh9vyb6pgbda google-site-verification=wdH5DTJTc9AYNwVunSVFeK0hYDGUIEOGb-RReU6pJlY google-site-verification=A2WZWCNQHrGV_TWwKh6KHY90tY0SHZo_RnyMJoDaG0s google-site-verification=sK6uY9x7eaMoEMfn3OILqwTFYgaNp4llmguKI-C3_iA zoom-domain-verification=4b2ef4e1-6dee-4483-9869-9bef353fd147 zoom-domain-verification=ZOOM_verify_e6c41daeb8a04c56b2c1d1702e312f88 hubspot-developer-verification=MzQ2OTc4NWYtNDNmNS00ZmFlLWE3YTUtMDEwOTllNmEyYWZm v=spf1 redirect=_spf.facebook.com |
| TXT | _dmarc.facebook.com | v=DMARC1; p=reject; rua=mailto:a@dmarc.facebookmail.com; pct=100 |
| CAA | facebook.com | 0 issue "digicert.com; account=271b0beda0771d006aa3a6c11b05187d456d6c239b46cb5241196095b09c92af" |
| DS | facebook.com | — |