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81
Total
95
DNS
70
Email
65
Security
70
Network
100
Availability
Domainjs.org
IPv43
IPv63
MX records2
StatusActive
Domain technical report

JS.ORG - the JavaScript organization

js.org

Dedicated to JavaScript and its awesome community since 2015

Generated: 2026-08-08T20:20:57-05:00 · Cached result

JSONCSVPDFVisit site
IPv43
IPv63
MX2
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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

2 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

79 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 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)
104.26.9.84
104.26.8.84
172.67.73.64

AAAA

3 record(s)
2606:4700:20::ac43:4940
2606:4700:20::681a:854
2606:4700:20::681a:954

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
20 mx2.improvmx.com.
10 mx1.improvmx.com.

TXT

2 record(s)
"v=spf1 -all"
"github-verification=Co5XEGjgZ54phI90tdeEbcXBt0LErl0nKNUpqPmR"

NS

2 record(s)
pam.ns.cloudflare.com.
miles.ns.cloudflare.com.

SOA

1 record(s)
miles.ns.cloudflare.com. dns.cloudflare.com. 2411685376 10000 2400 604800 1800

CAA

0 record(s)
—

Not configured

DS

1 record(s)
2371 13 2 BB5749B06B705CABAA999F6ADC60B60E528C502078E1A1075206A852 956D8670

DNSKEY

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

RRSIG

5 record(s)
SOA 13 2 1800 20260810022052 20260808002052 34505 js.org. vZzzpjaGXs1KqRkQivRr2RJ+1O4izRor4/lUWs1sI5/3g0Pv3fygOBOm cUh9x65UtGxcULf9dg7RpsVd5Flq+w==
AAAA 13 2 300 20260810022052 20260808002052 34505 js.org. bqFAObKh1B2knrd7iVRL77uo/eKMH6BgcgwKPWz+sRTRE0q7ywz+9HZB fc4QFHK37NH9tp+OevwFiUXdNk/4dQ==
A 13 2 300 20260810022052 20260808002052 34505 js.org. owdIxp2Fz6BHDaSJVIggCKPr3f3JOXnHVaQjhmMUCAxRNxkd3avH0RpG SUGHSUPxnkhmCBeBEUKT8LHUw71kIw==
DS 8 2 3600 20260822152352 20260801142352 44925 org. eKDcNCd9gqTXgK0hvsVdZBrQLnLewjlkS+hE2W9EymaDVNB+xrxzI+9p /klZ0NW8jZW8lnGpDcFGpEci+pubvwupC5UpUkXoOHGKMRr9ygh0PlpS uanmPg0awgYr72XUmOVasCzQMq3DKlucRCOxtyiCIVughe3uuT3Fz+as waQ=
NS 13 2 86400 20260810022052 20260808002052 34505 js.org. 7qCrA8pyW9ZmrjdcnEAgm4G79TeWRXO2iyty177HOlobX3Azme73yTn9 x6b3N2xdBJNYKLQlUQWa0Ijf6+YojQ==

NSEC

1 record(s)
\000.js.org. 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 -all

DMARC

Configured
v=DMARC1; p=reject; pct=100; rua=mailto:1be215ab483f472d8504460146e25ad7@dmarc-reports.cloudflare.net; sp=reject; aspf=s;

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
JS.ORG - the JavaScript organization
Description
Dedicated to JavaScript and its awesome community since 2015
Final URL
https://js.org/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://js.org/
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
js.org
Valid from
2026-07-29T16:30:12-05:00
Valid until
2026-10-27T17:29:49-05:00
Days remaining
79
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

0 active
—
HSTSNot detected
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
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
104.26.8.84, 104.26.9.84, 172.67.73.64
62,41 ms
Cloudflare
1.1.1.1
104.26.8.84, 104.26.9.84, 172.67.73.64
48,11 ms
Quad9
9.9.9.9
104.26.8.84, 104.26.9.84, 172.67.73.64
53,70 ms
OpenDNS
208.67.222.222
104.26.8.84, 104.26.9.84, 172.67.73.64
43,50 ms
AdGuard
94.140.14.14
104.26.8.84, 104.26.9.84, 172.67.73.64
46,83 ms

IP, geolocation and ASNAssociated network information

104.26.9.84

No data
success
No
country
region
city
asn
organization
isp

104.26.8.84

No data
success
No
country
region
city
asn
organization
isp

172.67.73.64

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

mx2.improvmx.com

Port 25: Closed/unreachable - 11.1 ms - 
Port 465: Closed/unreachable - 102.1 ms - 
Port 587: Closed/unreachable - 105.8 ms - 220 mx2.improvmx.com Welcome to ImprovMX mail server v3. - ImprovMX v2026.08.07

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