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90
Total
85
DNS
90
Email
88
Security
85
Network
100
Availability
Domainmarxists.org
IPv41
IPv61
MX records1
StatusActive
Domain technical report

Marxists Internet Archive

marxists.org

The most complete library of Marxism with content in 80 languages and the works of over 720 authors readily accessible by archive, subject, or history as well as hundreds of periodicals.

Generated: 2026-08-09T01:07:26-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv61
MX1
NS2

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

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 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.

✓
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

62 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: mail.marxists.org

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/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
65.109.101.238

AAAA

1 record(s)
2a01:4f9:3080:26d2::2

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mail.marxists.org.

TXT

2 record(s)
"v=spf1 mx -all"
"spf2.0/pra"

NS

2 record(s)
ns1.marxists.org.
ns1.lenin.org.

SOA

1 record(s)
ns1.marxists.org. root.marxists.org. 2025122001 43200 3600 1209600 3600

CAA

7 record(s)
0 issuewild "letsencrypt.org"
0 issuewild "digicert.com"
0 iodef "https://mail.marxists.org/contact"
0 issue "thawte.com"
0 issuewild "thawte.com"
0 issue "digicert.com"
0 issue "letsencrypt.org"

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 mx -all

DMARC

Configured
v=DMARC1;p=reject;adkim=s;aspf=s;pct=100;ri=86400;rua=mailto:dmarc-reports@marxists.org

DKIM

Selector mail
v=DKIM1;h=sha256;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwoSeK9u8rpTNgUkwKbnghG49+6/oJsfpKyqSh2vrkl+OzEjPu5UDvwgv0WdynIekQb+WjJWuqpaAXto0EVFt2F7/fsP1ZhymuSO+tOV4nrcUMuUiymB00ZSOhOzrsRC1XI78r7EtLyBcb6oGQOWhDtGkqzY/IK8Osv1IWD/WM946nJA/BoEXkrLcWVFSw9jWc40MS2uMmLW315xsQKFV+6Bb3pu4LLmm/EKB8Z4c01GBRcPLoLOy2xNPiLPTzOXm54fRMS9b9NgcMUg5lw4nC394JLKqkl6VHEdp9MtgbxqPczSV/7Y6HfTxXhTSN/wHoUTF1f1pjgCeRf9aa3GvYQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Marxists Internet Archive
Description
The most complete library of Marxism with content in 80 languages and the works of over 720 authors readily accessible by archive, subject, or history as well as hundreds of periodicals.
Final URL
https://www.marxists.org/
HTTP status
206

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.marxists.org/
Version
2
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
marxists.org
Valid from
2026-07-12T15:02:19-05:00
Valid until
2026-10-10T15:02:18-05:00
Days remaining
62
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

6 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
—
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
65.109.101.238
40,97 ms
Cloudflare
1.1.1.1
65.109.101.238
164,46 ms
Quad9
9.9.9.9
65.109.101.238
50,35 ms
OpenDNS
208.67.222.222
65.109.101.238
70,89 ms
AdGuard
94.140.14.14
65.109.101.238
158,49 ms

IP, geolocation and ASNAssociated network information

65.109.101.238

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

mail.marxists.org

Port 25: Closed/unreachable - 116.2 ms - 
Port 465: Closed/unreachable - 4133.6 ms - 
Port 587: Closed/unreachable - 240.5 ms - 220 mail.marxists.org ESMTP

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