Domain technical report
Error
m.facebook.com
See posts, photos and more on Facebook.
IPv41
IPv61
MX1
NS1
Analyze any domain
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74
Total
70
DNS
45
Email
73
Security
85
Network
100
Availability
Domainm.facebook.com
IPv41
IPv61
MX records1
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
1 IPv4 address(es) detected.
IPv6 (AAAA)10 / 10 pts · Dns
1 IPv6 address(es) detected.
Name server redundancy0 / 20 pts · Dns
1 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain15 / 15 pts · Dns
DS and DNSKEY detected.
CAA policy5 / 5 pts · Dns
Certificate authority restriction.
DNS propagation0 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
1 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC0 / 25 pts · Mail
DMARC policy not found.
DKIM0 / 20 pts · Mail
No tested DKIM selector responded.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
8 day(s) remaining.
Certificate lifetime2 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers16 / 35 pts · Security
4 of 9 evaluated headers detected.
PTR reverse DNS30 / 30 pts · Network
PTR: edge-star-mini-shv-02-ord5.facebook.com
IPv4 diversity20 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity35 / 35 pts · Network
AAAA availability.
DNS resolution40 / 40 pts · Availability
At least one address family must resolve.
HTTP response40 / 40 pts · Availability
HTTP/2 200
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
2 record(s)star-mini.c10r.facebook.com. 157.240.254.35
AAAA
2 record(s)star-mini.c10r.facebook.com. 2a03:2880:f175:181:face:b00c:0:25de
CNAME
1 record(s)star-mini.c10r.facebook.com.
MX
1 record(s)star-mini.c10r.facebook.com.
TXT
2 record(s)star-mini.c10r.facebook.com. "v=spf1 a ~all"
NS
1 record(s)star-mini.c10r.facebook.com.
SOA
1 record(s)star-mini.c10r.facebook.com.
CAA
1 record(s)star-mini.c10r.facebook.com.
DS
1 record(s)star-mini.c10r.facebook.com.
DNSKEY
1 record(s)star-mini.c10r.facebook.com.
RRSIG
0 record(s)—
Not configured
NSEC
0 record(s)—
Not configured
NSEC3
1 record(s)star-mini.c10r.facebook.com.
SRV
1 record(s)star-mini.c10r.facebook.com.
NAPTR
1 record(s)star-mini.c10r.facebook.com.
TLSA
1 record(s)star-mini.c10r.facebook.com.
SSHFP
1 record(s)star-mini.c10r.facebook.com.
SPF
Configuredv=spf1 a ~all
DMARC
Not configured—
Not configured
DKIM
Not found—
Not configured
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Error
Description
See posts, photos and more on Facebook.
Final URL
https://m.facebook.com/
HTTP status
200
HTTP
Status
HTTP/2 200
Final URL
https://m.facebook.com/
Version
3
Server
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
DigiCert Inc
CN
*.facebook.com
Valid from
2026-05-17T19:00:00-05:00
Valid until
2026-08-16T18:59:59-05:00
Days remaining
8
Protocol
TLSv1.3
Cipher
TLS_CHACHA20_POLY1305_SHA256
Security headers
4 activeHSTSImplemented
Content Security PolicyNot detected
X-Content-Type-OptionsImplemented
X-Frame-OptionsImplemented
Referrer PolicyNot detected
Permissions PolicyNot detected
Cross-Origin-Opener-PolicyImplemented
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyNot detected
DNS propagationComparison across public resolvers
Public resolver comparison
ReviewDifferences detected
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.857.144.204.1
76,96 ms
Cloudflare
1.1.1.157.144.218.1
45,59 ms
Quad9
9.9.9.9157.240.11.35
50,56 ms
OpenDNS
208.67.222.22257.144.204.1
62,21 ms
AdGuard
94.140.14.14157.240.26.35
47,69 ms
IP, geolocation and ASNAssociated network information
157.240.254.35
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
star-mini.c10r.facebook.com
Port 25: Closed/unreachable - 1.1 ms - Port 465: Closed/unreachable - 4021.2 ms - Port 587: Closed/unreachable - 4017.7 ms -