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86
Total
95
DNS
90
Email
69
Security
70
Network
100
Availability
Domainjulialang.org
IPv44
IPv64
MX records1
StatusActive
Domain technical report

The Julia Programming Language

julialang.org

The official website for the Julia Language. Julia is a language that is fast, dynamic, easy to use, and open source. Click here to learn more.

Generated: 2026-08-10T15:55:52-05:00 · Cached result

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IPv44
IPv64
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

4 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

4 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

1 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

71 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers4 / 35 pts · Security

1 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

4 record(s)
151.101.2.49
151.101.66.49
151.101.194.49
151.101.130.49

AAAA

4 record(s)
2a04:4e42::561
2a04:4e42:400::561
2a04:4e42:200::561
2a04:4e42:600::561

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
1 smtp.google.com.

TXT

6 record(s)
"_globalsign-domain-verification=O60kZMoa5mBPIKKqd9FSRXcGUhU6s3rzZHzWNLAlL7"
"google-site-verification=C4QV7z2GhyCy7SYl2sn5LaAC7CtCbCkd4cSlXucBdSA"
"google-site-verification=9VDSjBtchQj6PQYIVwugTPY7pVCfLYgvkXiRHjc_Bzw"
"v=spf1 include:_spf.google.com ~all"
"google-site-verification=UnjPoEkPGevhXxjww4mIWObcQPqtuiHk27qu-hgZmbc"
"_globalsign-domain-verification=fsrfW7Xky97daWCU-mDTGZh-Fqns_6wvS3p-DBPbF_"

NS

2 record(s)
dns2.registrar-servers.com.
dns1.registrar-servers.com.

SOA

1 record(s)
dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1786335210 43200 3600 604800 3601

CAA

0 record(s)
—

Not configured

DS

1 record(s)
42187 13 1 140F9C540529A4364FCDB8A23A00F2FA939C1F3B

DNSKEY

2 record(s)
257 3 13 Nh8yZwvsleGc+3dEZSNXGKbjWen1/VjynYdWZNMqpvkFjGYitg83wCEi um9BYg7gnO0Udf41l6267O7uUuo+wQ==
256 3 13 SEkxZsT1iGaWRFYMNGbaLcIDDwAw73FJa5vN5lTZ+IXLkiwDuQHQFPMv pD7EHky9T+q21Lvmpq6bUPWjwdz2Cw==

RRSIG

3 record(s)
SOA 13 2 3601 20260820000000 20260730000000 39748 julialang.org. U4jFG+KQa+AuH0O/s9UolyC4Sf4wMWXJld908FQDn9uRhXuIhknOMTgh /71ZsgTxnBY3cgiX+Ao8nIDarDBvIQ==
NS 13 2 1800 20260820000000 20260730000000 39748 julialang.org. uSDqZsBTNRm9teB8yx7n7+6lt/OjgeZ93CYqEQ4YVr1rWCRskyjOO41r S8uMXvLBqo6+iijdqatpnGxcfrO6Lw==
DS 8 2 3600 20260830152406 20260809142406 44925 org. scbTkZbrJBKo0xBSWc+WPphU3vuvHmJzlHnvHp/RmaJq7titBrnvszrw HVCuQdCkMjwmzCUtNLQ/KODMOhWp7iPC9GtJe+/j8Qb7muEgtKqiFV4z 2k2nZXge15DNVuTA9fCSO5X7dmOZgx3vqgvsCLkHtfpUSJot5CkT6Ffv UgA=

NSEC

1 record(s)
_acme-challenge.julialang.org. A NS SOA MX TXT AAAA RRSIG NSEC DNSKEY

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 include:_spf.google.com ~all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:dmarc@julialang.org; pct=100; adkim=s; aspf=s

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu9+VftfkZMWhrn1lub00ytKZYDYDwCLBII4HnWGU7ufuo1vm3URjkxJkbqNckpQYYL7zg2oFsgYKusC8nZOcSMdnuUokJP2neXF7CZe9dE/yAObbtJ193ifZ/X/XMHbPgghH4x8jhI9Oq9fsRpWgdFHOeIk4V2q2X53iQL9Q3ojC4BydnzXC8uvkqIbSIMcRriz/nK+OAx7l1D/x9/eY8VJMb4HAzQhByLgEqDhxaxvRs7xfEX29/t2CCrdTpDjK1V4JCWAkAnqTnVVOZbs1yES/mkfuAxvGl668uX29hmtaj9mVhTtigxDRAJsvAjyMTIckpzhmqLChktDfO8oLMQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
The Julia Programming Language
Description
The official website for the Julia Language. Julia is a language that is fast, dynamic, easy to use, and open source. Click here to learn more.
Final URL
https://julialang.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://julialang.org/
Version
3
Server
GitHub.com
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
julialang.org
Valid from
2025-09-19T12:00:30-05:00
Valid until
2026-10-21T12:00:29-05:00
Days remaining
71
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

Security headers

1 active
✓
HSTSImplemented
—
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
151.101.130.49, 151.101.194.49, 151.101.2.49, 151.101.66.49
61,72 ms
Cloudflare
1.1.1.1
151.101.130.49, 151.101.194.49, 151.101.2.49, 151.101.66.49
49,12 ms
Quad9
9.9.9.9
151.101.130.49, 151.101.194.49, 151.101.2.49, 151.101.66.49
77,56 ms
OpenDNS
208.67.222.222
151.101.130.49, 151.101.194.49, 151.101.2.49, 151.101.66.49
106,98 ms
AdGuard
94.140.14.14
151.101.130.49, 151.101.194.49, 151.101.2.49, 151.101.66.49
89,91 ms

IP, geolocation and ASNAssociated network information

151.101.2.49

No data
success
No
country
region
city
asn
organization
isp

151.101.66.49

No data
success
No
country
region
city
asn
organization
isp

151.101.194.49

No data
success
No
country
region
city
asn
organization
isp

151.101.130.49

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

smtp.google.com

Port 25: Closed/unreachable - 44.7 ms - 220 mx.google.com ESMTP 586e51a60fabf-459f19ee487si8863456fac.39 - gsmtp
Port 465: Closed/unreachable - 4039.9 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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