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Total

DNS

Email

Security

Network

100

Availability

Domainatom.io

IPv41

IPv60

MX records0

StatusActive

Domain technical report

Sunsetting Atom - The GitHub Blog

atom.io

We are archiving Atom and all projects under the Atom organization for an official sunset on December 15, 2022.

Generated: 2026-08-09T09:07:35-05:00 · Cached result

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IPv41

IPv60

MX0

NS4

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

4 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 propagation0 / 10 pts · Dns

Agreement between public resolvers.

MX records0 / 20 pts · Mail

0 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

DMARC0 / 25 pts · Mail

DMARC policy not found.

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 headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: lb-140-82-112-18-iad.github.com

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)

140.82.112.18

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

0 record(s)

—

Not configured

TXT

1 record(s)

"v=spf1 include:mailgun.org ~all"

NS

4 record(s)

dns2.p02.nsone.net.
dns3.p02.nsone.net.
dns1.p02.nsone.net.
dns4.p02.nsone.net.

SOA

1 record(s)

dns1.p02.nsone.net. hostmaster.nsone.net. 1650051852 43200 7200 1209600 3600

CAA

5 record(s)

0 issuewild "sectigo.com"
0 issuewild "digicert.com"
0 issue "sectigo.com"
0 issue "letsencrypt.org"
0 issue "digicert.com"

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 include:mailgun.org ~all

DMARC

Not configured

—

Not configured

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Sunsetting Atom - The GitHub Blog

Description

We are archiving Atom and all projects under the Atom organization for an official sunset on December 15, 2022.

Final URL

https://github.blog/news-insights/product-news/sunsetting-atom/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://github.blog/news-insights/product-news/sunsetting-atom/

Version

Server

nginx

X-Powered-By

WordPress VIP <https://wpvip.com>

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Sectigo Limited

*.atom.io

Valid from

2026-07-29T19:00:00-05:00

Valid until

2026-10-27T18:59:59-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

2 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

X-Frame-OptionsImplemented

—

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

Review

Differences detected

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

140.82.114.17

97,33 ms

Cloudflare

1.1.1.1

140.82.113.17

83,97 ms

Quad9

9.9.9.9

140.82.113.17

93,25 ms

OpenDNS

208.67.222.222

140.82.112.18

51,10 ms

AdGuard

94.140.14.14

140.82.114.17

270,31 ms

IP, geolocation and ASNAssociated network information

140.82.112.18

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

atom.io

Port 25: Closed/unreachable - 0.7 ms - 
Port 465: Closed/unreachable - 4017.6 ms - 
Port 587: Closed/unreachable - 4004.1 ms -

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