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70
Total
70
DNS
70
Email
65
Security
20
Network
100
Availability
Domainsublimetext.com
IPv41
IPv60
MX records5
StatusActive
Domain technical report

Sublime Text - Text Editing, Done Right

sublimetext.com

Sublime Text is a sophisticated text editor for code, markup and prose. You'll love the slick user interface, extraordinary features and amazing performance.

Generated: 2026-08-09T03:31:06-05:00 · Cached result

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IPv41
IPv60
MX5
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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

5 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

47 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.

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)
45.55.41.223

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
1 aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.

TXT

1 record(s)
"v=spf1 include:_spf.google.com ~all"

NS

2 record(s)
ns32.domaincontrol.com.
ns31.domaincontrol.com.

SOA

1 record(s)
ns31.domaincontrol.com. dns.jomax.net. 2026060100 28800 7200 604800 600

CAA

0 record(s)
—

Not configured

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:_spf.google.com ~all

DMARC

Configured
v=DMARC1; p=quarantine; ruf=mailto:dmarc@sublimetext.com

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Sublime Text - Text Editing, Done Right
Description
Sublime Text is a sophisticated text editor for code, markup and prose. You'll love the slick user interface, extraordinary features and amazing performance.
Final URL
https://www.sublimetext.com/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.sublimetext.com/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
sublimetext.com
Valid from
2026-06-27T09:38:14-05:00
Valid until
2026-09-25T09:38:13-05:00
Days remaining
47
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

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
45.55.41.223
81,76 ms
Cloudflare
1.1.1.1
45.55.41.223
42,79 ms
Quad9
9.9.9.9
45.55.41.223
76,01 ms
OpenDNS
208.67.222.222
45.55.41.223
45,63 ms
AdGuard
94.140.14.14
45.55.41.223
50,62 ms

IP, geolocation and ASNAssociated network information

45.55.41.223

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

aspmx.l.google.com

Port 25: Closed/unreachable - 22.5 ms - 220 mx.google.com ESMTP 46e09a7af769-7f35b567c87si5772657a34.23 - gsmtp
Port 465: Closed/unreachable - 4020.3 ms - 
Port 587: Closed/unreachable - 4017.6 ms -

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