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88
Total
85
DNS
90
Email
88
Security
70
Network
100
Availability
Domain3cx.com
IPv42
IPv62
MX records5
StatusActive
Domain technical report

Enterprise Phone System Software | 3CX

3cx.com

Enterprise IP PBX Phone System Software includes AI Receptionist, AI Transcription & Call Center Reports. Learn more today I 3CX

Generated: 2026-08-10T23:59:58-05:00 · Cached result

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IPv42
IPv62
MX5
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 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

5 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

79 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓
IPv4 diversity35 / 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)
104.18.35.19
172.64.152.237

AAAA

2 record(s)
2a06:98c1:3101::ac40:98ed
2a06:98c1:3100::6812:2313

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
5 alt1.aspmx.l.google.com.
1 aspmx.l.google.com.
10 aspmx2.googlemail.com.
10 aspmx3.googlemail.com.
5 alt2.aspmx.l.google.com.

TXT

13 record(s)
"google-site-verification=9DPkO3vH3t7XomKY-phAk8t9-v2xWcLgdAZQ72v6OAA"
"google-site-verification=GiHY4plwY23mVNPol4YfpE7itXdT3if9lK7GpXJdrYk"
"apple-domain-verification=dRb7IaU7hfLLp50A"
"bw=kiX3m7xv9nen5oUTGQtVFeaKl/s9XDX+QgkByz+GGGsK"
"cursor-domain-verification-016fs6=a6DKqgKgoDsx0fwzj7Odb1Ryo"
"MS=ms35067406"
"google-site-verification=ULINTPpmSWJ3d-Oyv0NyLl7VR5wKK8Z7931qvZ3fmM4"
"openai-domain-verification=dv-2FImJprLkaEML0ohQ4JAS0bs"
"zoho-verification=zb57121703.zmverify.zoho.eu"
"atlassian-domain-verification=HBPPSOYldPZDz2/PqV88gH/xmDmirfGVenama1gzLrDmzdMRHC0UGBSLJpD/qanC"
"h1-domain-verification=LMZW6ZZeDbA57h8zVMLNQGBEm9k44CBikZMNNaXvPTN16oqQ"
"google-site-verification=BWPfRgyHNECS5fBSVlSgnsKyi-F2YjW0ezByf68apGI"
"v=spf1 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip6:2001:4860:4000::/36  ip6:2404:68" "00:4000::/36 ip6:2607:f8b0:4000::/36 include:spfb.3cx.com include:spfa.3cx.com -all"

NS

2 record(s)
augustus.ns.cloudflare.com.
alina.ns.cloudflare.com.

SOA

1 record(s)
alina.ns.cloudflare.com. dns.cloudflare.com. 2411588955 10000 2400 604800 1800

CAA

11 record(s)
0 iodef "mailto:webmaster@3cx.com"
0 issue "letsencrypt.org"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "comodoca.com"
0 issuewild "comodoca.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issuewild "letsencrypt.org"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issue "ssl.com"
0 issuewild "ssl.com"
0 issuewild "digicert.com; cansignhttpexchanges=yes"

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

Configured
v=spf1 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip6:2001:4860:4000::/36  ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 include:spfb.3cx.com include:spfa.3cx.com -all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:dmarc@3cx.com; ruf=mailto:dmarc@3cx.com; sp=reject; fo=0:1:d:s; pct=100; adkim=s; aspf=r

DKIM

Selector google
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCCarJnRZ5mvPtKJQAef5U961ZbpfsVZPANev2j5fdWcA31TByvk9vYgdVrWiXli+wF6BuxJS96L5aJaj91//Avy5X30ePJRyQwr3zO9O3hZk6ZDxgf+WdWW/uaDUkbWEadqpc7wXTuCJCjcpth/mD0c89MfXGYcx9nId6nRTm1CwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Enterprise Phone System Software | 3CX
Description
Enterprise IP PBX Phone System Software includes AI Receptionist, AI Transcription & Call Center Reports. Learn more today I 3CX
Final URL
https://www.3cx.com/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.3cx.com/
Version
3
Server
cloudflare
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Google Trust Services
CN
3cx.com
Valid from
2026-07-31T16:05:25-05:00
Valid until
2026-10-29T17:05:02-05:00
Days remaining
79
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

6 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
104.18.35.19, 172.64.152.237
77,66 ms
Cloudflare
1.1.1.1
104.18.35.19, 172.64.152.237
19,33 ms
Quad9
9.9.9.9
104.18.35.19, 172.64.152.237
23,42 ms
OpenDNS
208.67.222.222
104.18.35.19, 172.64.152.237
27,65 ms
AdGuard
94.140.14.14
104.18.35.19, 172.64.152.237
58,52 ms

IP, geolocation and ASNAssociated network information

104.18.35.19

No data
success
No
country
region
city
asn
organization
isp

172.64.152.237

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
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

alt1.aspmx.l.google.com

Port 25: Closed/unreachable - 0.6 ms - 
Port 465: Closed/unreachable - 4020.7 ms - 
Port 587: Closed/unreachable - 4021.1 ms -

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