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90
Total
100
DNS
75
Email
84
Security
85
Network
100
Availability
Domainrarlab.com
IPv41
IPv61
MX records1
StatusActive
Domain technical report

WinRAR archiver, a powerful tool to process RAR and ZIP files

rarlab.com

WinRAR provides the full RAR and ZIP file support, can decompress CAB, GZIP and other archive formats

Generated: 2026-08-09T11:43:14-05:00 · Cached result

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IPv41
IPv61
MX1
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

3 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 policy5 / 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-STS5 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

60 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: www.rarlab.com

i
IPv4 diversity20 / 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

1 record(s)
51.195.68.162

AAAA

1 record(s)
2001:41d0:f00:1e01::162

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mailcow.rarlab.com.

TXT

1 record(s)
"v=spf1 mx -all"

NS

3 record(s)
ns3.rarlab.com.
ns2.rarlab.com.
ns1.rarlab.com.

SOA

1 record(s)
ns3.rarlab.com. root.rarlab.com. 2026071114 10800 3600 2419200 3600

CAA

6 record(s)
0 issue ";"
0 issuewild ";"
0 issuewild "digicert.com"
0 issue "digicert.com"
0 issue "letsencrypt.org"
0 iodef "mailto:postmaster@rarlab.com"

DS

1 record(s)
21246 13 2 497A362C835085B7ABCC83751D6D1AC5D4BCEAD18E75DEB94429AA53 9BF296C0

DNSKEY

1 record(s)
257 3 13 iKejdJ1IfQL50SJwBdYJvgc7bqOga6+WQAHyvOXnjLFGdS0z0lKuUOpn Ie9FSV/3zLzSgP79t5yD4lnHdSEi8w==

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 mx -all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:re+q9it9lxm4oq@dmarc.postmarkapp.com;

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
WinRAR archiver, a powerful tool to process RAR and ZIP files
Description
WinRAR provides the full RAR and ZIP file support, can decompress CAB, GZIP and other archive formats
Final URL
https://www.rarlab.com/
HTTP status
206

HTTP

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

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
rarlab.com
Valid from
2026-07-10T16:04:47-05:00
Valid until
2026-10-08T16:04:46-05:00
Days remaining
60
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
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
51.195.68.162
61,94 ms
Cloudflare
1.1.1.1
51.195.68.162
293,42 ms
Quad9
9.9.9.9
51.195.68.162
266,69 ms
OpenDNS
208.67.222.222
51.195.68.162
140,14 ms
AdGuard
94.140.14.14
51.195.68.162
142,58 ms

IP, geolocation and ASNAssociated network information

51.195.68.162

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

mailcow.rarlab.com

Port 25: Closed/unreachable - 101.4 ms - 
Port 465: Closed/unreachable - 115.1 ms - 
Port 587: Closed/unreachable - 216.4 ms - 220 mailcow.rarlab.com ESMTP Postcow

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