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80
Total
85
DNS
70
Email
81
Security
50
Network
100
Availability
Domainerlang.org
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Index - Erlang/OTP

erlang.org

The official home of the Erlang Programming Language

Generated: 2026-08-10T14:08:39-05:00 · Cached result

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IPv41
IPv60
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 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.

!
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

71 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: 106.151.121.192.in-addr.cslab.ericsson.net

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 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)
192.121.151.106

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 hel.cslab.ericsson.net.

TXT

1 record(s)
"v=spf1 +mx ip4:192.121.151.108 include:ericsson.com -all"

NS

2 record(s)
ns.erlang.org.
ns2.ericsson.se.

SOA

1 record(s)
ns.erlang.org. hostmaster.erlang.org. 1786318201 14400 7200 2592000 3600

CAA

0 record(s)
—

Not configured

DS

1 record(s)
54041 13 2 6BB7FE61AE0982955698F35AC622C9009B1AB5FD465DAFC92B942A63 51A611DD

DNSKEY

2 record(s)
256 3 13 kTUsHwDXibjFMoYFNJp7CAhJblzpyK1bfYbLzW8RCii8Rbd8jrxqSPaq vywv2+jlqMk5yLEPzMZYUpADeuceqA==
257 3 13 wyeFk3gkPz0QWuQJP0of56CCMBlbLur9x1vqSTJuaDFMOtckvj0SL+QF gK8DlmZPVTyEeHl0PHgFbsaQ3zEbEw==

RRSIG

4 record(s)
NS 13 2 600 20260906233001 20260809233001 13522 erlang.org. WNDgGjGUTEvdmsINgyoku9OYE1SIZMw6WIWJNfsR9XXoOOBjJqr9kmDb /plLgBh/6sBH/7qBWsxmMrp3IXC3fg==
SOA 13 2 600 20260906233001 20260809233001 13522 erlang.org. O6ieTE28ysR1+dw7k6zb3U/9x8wjipc2QHzMlSTz+2lf5R5Gf7bS37Fj BfTC6sNttsdONcKKlHODOmys1CEAZw==
MX 13 2 600 20260906233001 20260809233001 13522 erlang.org. t+S1kJYHpzXa8cex62np/sslVB/4zWXrL1osd3I4d/5La3GtJw4nyetR 8voVDYYg44DKoSNqnhvoXjaIdYTO5Q==
DS 8 2 3600 20260830152406 20260809142406 44925 org. YfdOCpFNcZAdj9YRsq3u+zhwTifuxsrW1peSBU6TiEQMcLGm5C3NUb6c PHTOa+y7FbtHnwSLpG9P6Nc6ErWyjS+Ne7YjZQwmXw2qa4t45FK/5/Uv HmeomPTKEyYFK64SJLW4vM9h3TBichjkz8cc2KtDD97wXZTW+X1CRFBa eMo=

NSEC

1 record(s)
_dmarc.erlang.org. A NS SOA MX TXT 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 +mx ip4:192.121.151.108 include:ericsson.com -all

DMARC

Configured
v=DMARC1; p=none;

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Index - Erlang/OTP
Description
The official home of the Erlang Programming Language
Final URL
https://www.erlang.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.erlang.org/
Version
3
Server
Netlify
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
erlang.org
Valid from
2025-10-02T19:00:00-05:00
Valid until
2026-10-20T18:59:59-05:00
Days remaining
71
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

4 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
—
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
192.121.151.106
329,87 ms
Cloudflare
1.1.1.1
192.121.151.106
2.291,71 ms
Quad9
9.9.9.9
192.121.151.106
1.847,38 ms
OpenDNS
208.67.222.222
192.121.151.106
625,69 ms
AdGuard
94.140.14.14
192.121.151.106
347,04 ms

IP, geolocation and ASNAssociated network information

192.121.151.106

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

hel.cslab.ericsson.net

Port 25: Closed/unreachable - 141.7 ms - 
Port 465: Closed/unreachable - 4146.9 ms - 
Port 587: Closed/unreachable - 4137.5 ms -

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