Domain technical report
Get Firefox for desktop and mobile — Firefox.com
firefox.com
Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy.
IPv41
IPv61
MX1
NS4
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86
Total
85
DNS
70
Email
88
Security
85
Network
100
Availability
Domainfirefox.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 redundancy20 / 20 pts · Dns
4 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain0 / 15 pts · Dns
Both DS and DNSKEY are required.
CAA policy5 / 5 pts · Dns
Certificate authority restriction.
DNS propagation10 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
1 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
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
60 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers23 / 35 pts · Security
6 of 9 evaluated headers detected.
PTR reverse DNS30 / 30 pts · Network
PTR: 201.14.190.35.bc.googleusercontent.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
1 record(s)35.190.14.201
AAAA
1 record(s)2600:1901:0:c197::
CNAME
0 record(s)—
Not configured
MX
1 record(s)10 smtp1.mdc1.mozilla.com.
TXT
7 record(s)"facebook-domain-verification=wcer1w80xkwrzqftwc3shhkel9ys8m"
"kr1887r7cjn94rzlgp1bpnj8v94wd3mg"
"google-gws-recovery-domain-verification=70476672"
"3mjnbdj3h9wpslgz0gfly0pbr94wd12y"
"_vrrc3v9222jxd6yhvt728lc4om6z0ff"
"google-site-verification=ZqFMUZ8Gzf13U_nchwvBgRE_sRAxAR5xLz-X5w4BU4s"
"v=spf1 mx a include:amazonses.com include:mail.zendesk.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -all"NS
4 record(s)ns1-240.akam.net. ns7-66.akam.net. ns5-65.akam.net. ns4-64.akam.net.
SOA
1 record(s)ns5-65.akam.net. sysadmins.mozilla.org. 2018043045 180 180 1209600 3600
CAA
7 record(s)128 iodef "mailto:foxsec+caaiodef@mozilla.com" 128 issue "digicert.com" 128 issue "amazon.com" 128 issue "letsencrypt.org" 128 issue "awstrust.com" 128 issue "amazonaws.com" 128 issue "amazontrust.com"
DS
0 record(s)—
Not configured
DNSKEY
0 record(s)—
Not configured
RRSIG
0 record(s)—
Not configured
NSEC
0 record(s)—
Not configured
NSEC3
0 record(s)—
Not configured
SRV
0 record(s)—
Not configured
NAPTR
0 record(s)—
Not configured
TLSA
0 record(s)—
Not configured
SSHFP
0 record(s)—
Not configured
SPF
Configuredv=spf1 mx a include:amazonses.com include:mail.zendesk.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -allDMARC
Configuredv=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:dmarc_agg@vali.email,mailto:accounts@firefox.com; ruf=mailto:accounts@firefox.com
DKIM
Not found—
Not configured
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Get Firefox for desktop and mobile — Firefox.com
Description
Firefox is a free web browser backed by Mozilla, a non-profit dedicated to internet health and privacy.
Final URL
https://www.firefox.com/
HTTP status
206
HTTP
Status
HTTP/2 200
Final URL
https://www.firefox.com/
Version
3
Server
granian
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Let's Encrypt
CN
firefox.com
Valid from
2026-07-10T14:03:00-05:00
Valid until
2026-10-08T14:02:59-05:00
Days remaining
60
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
6 activeHSTSImplemented
Content Security PolicyImplemented
X-Content-Type-OptionsImplemented
X-Frame-OptionsImplemented
Referrer PolicyImplemented
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
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.835.190.14.201
24,73 ms
Cloudflare
1.1.1.135.190.14.201
18,72 ms
Quad9
9.9.9.935.190.14.201
23,56 ms
OpenDNS
208.67.222.22235.190.14.201
25,09 ms
AdGuard
94.140.14.1435.190.14.201
43,43 ms
IP, geolocation and ASNAssociated network information
35.190.14.201
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
smtp1.mdc1.mozilla.com
Port 25: Closed/unreachable - 25.8 ms - Port 465: Closed/unreachable - 65.8 ms - Port 587: Closed/unreachable - 40.5 ms - 220 smtp1.mail.mdc1.mozilla.com ESMTP Postfix