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83
Total
100
DNS
65
Email
73
Security
70
Network
100
Availability
Domaincdnjs.com
IPv43
IPv63
MX records1
StatusActive
Domain technical report

cdnjs - The #1 free and open source CDN built to make life easier for developers

cdnjs.com

Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 12.5% of all websites, serving over 200 billion requests each month, powered by Cloudflare. We make it faster and easier to load library files on your websites.

Generated: 2026-08-10T15:29:57-05:00 · Cached result

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IPv43
IPv63
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

3 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 chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓
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.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

✓
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

73 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 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

3 record(s)
172.67.66.177
104.24.197.20
104.24.196.20

AAAA

3 record(s)
2606:4700:20::6818:c514
2606:4700:20::6818:c414
2606:4700:20::ac43:42b1

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mx.yandex.net.

TXT

5 record(s)
"google-site-verification=JF-0wyE0uZzwRsZjnO7zEPL7ECUFBn5idbUbKk_s2Rg"
"loaderio=0de8d660a8a2613a3f4489af9e4c090d"
"google-site-verification=R3VHfReFpidttvgvXyMBrUfIOg38Ip0rwXhSKBP24VM"
"yandex-verification: 448c44c13bcfaa3e"
"v=spf1 redirect=_spf.yandex.net"

NS

2 record(s)
ben.ns.cloudflare.com.
lara.ns.cloudflare.com.

SOA

1 record(s)
ben.ns.cloudflare.com. dns.cloudflare.com. 2411207470 10000 2400 604800 1800

CAA

10 record(s)
0 issuewild "letsencrypt.org"
0 issuewild "comodoca.com"
0 issue "comodoca.com"
0 issue "ssl.com"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issuewild "ssl.com"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "letsencrypt.org"
0 issuewild "pki.goog; cansignhttpexchanges=yes"

DS

1 record(s)
2371 13 2 C1CD2E4F754914B2C4E6AAE2C5536EE339960D33F658AB7AA0933B3C 674357EA

DNSKEY

2 record(s)
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

0 record(s)
—

Not configured

NSEC

1 record(s)
\000.cdnjs.com. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA

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 redirect=_spf.yandex.net

DMARC

Not configured
—

Not configured

DKIM

Selector google
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCmeP2SukFz94sRv/8X7zRsAzLTxAgpMVEHYfZIb/eBBgCnLZgz8g7XQsGdxKlbKza07EODvPjuuJf6tA9S7JjKXkPyfIo+6YPKS+u1i19ATQTEhJIqvcPxANIV+3HNUPPlTQaurlXYQayx0jetA1c+acNu+CAllMQ8r5BgJ6SS8QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
cdnjs - The #1 free and open source CDN built to make life easier for developers
Description
Simple. Fast. Reliable. Content delivery at its finest. cdnjs is a free and open-source CDN service trusted by over 12.5% of all websites, serving over 200 billion requests each month, powered by Cloudflare. We make it faster and easier to load library files on your websites.
Final URL
https://cdnjs.com/
HTTP status
200

HTTP

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

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
cdnjs.com
Valid from
2026-07-25T12:57:39-05:00
Valid until
2026-10-23T12:57:38-05:00
Days remaining
73
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
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
104.24.196.20, 104.24.197.20, 172.67.66.177
72,44 ms
Cloudflare
1.1.1.1
104.24.196.20, 104.24.197.20, 172.67.66.177
43,34 ms
Quad9
9.9.9.9
104.24.196.20, 104.24.197.20, 172.67.66.177
130,26 ms
OpenDNS
208.67.222.222
104.24.196.20, 104.24.197.20, 172.67.66.177
39,74 ms
AdGuard
94.140.14.14
104.24.196.20, 104.24.197.20, 172.67.66.177
51,57 ms

IP, geolocation and ASNAssociated network information

172.67.66.177

No data
success
No
country
region
city
asn
organization
isp

104.24.197.20

No data
success
No
country
region
city
asn
organization
isp

104.24.196.20

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

mx.yandex.net

Port 25: Closed/unreachable - 110.8 ms - 
Port 465: Closed/unreachable - 4008 ms - 
Port 587: Closed/unreachable - 4020.9 ms -

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