Domain technical report
The Anarchist Library | The Anarchist Library
theanarchistlibrary.org
The Anarchist Library
IPv41
IPv60
MX1
NS2
Analyze any domain
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74
Total
75
DNS
70
Email
65
Security
50
Network
100
Availability
Domaintheanarchistlibrary.org
IPv41
IPv60
MX records1
StatusActive
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 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-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
75 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 DNS30 / 30 pts · Network
PTR: theanarchistlibrary.org
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/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)216.252.162.140
AAAA
0 record(s)—
Not configured
CNAME
0 record(s)—
Not configured
MX
1 record(s)10 mail.theanarchistlibrary.org.
TXT
1 record(s)"v=spf1 mx a ~all"
NS
2 record(s)ns2.openguild.net. ns1.openguild.net.
SOA
1 record(s)ns1.openguild.net. hostmaster.openguild.net. 2026053100 28800 7200 2419200 3600
CAA
1 record(s)128 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
Configuredv=spf1 mx a ~all
DMARC
Configuredv=DMARC1;p=none;pct=100;rua=mailto:postmaster@theanarchistlibrary.org;
DKIM
Not found—
Not configured
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
The Anarchist Library | The Anarchist Library
Description
The Anarchist Library
Final URL
https://theanarchistlibrary.org/special/index
HTTP status
200
HTTP
Status
HTTP/1.1 200 OK
Final URL
https://theanarchistlibrary.org/special/index
Version
2
Server
nginx/1.22.1
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Let's Encrypt
CN
bookshelf.theanarchistlibrary.org
Valid from
2026-07-27T18:27:30-05:00
Valid until
2026-10-25T18:27:29-05:00
Days remaining
75
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
0 activeHSTSNot 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
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8216.252.162.140
35,56 ms
Cloudflare
1.1.1.1216.252.162.140
156,56 ms
Quad9
9.9.9.9216.252.162.140
23,46 ms
OpenDNS
208.67.222.222216.252.162.140
91,33 ms
AdGuard
94.140.14.14216.252.162.140
307,04 ms
IP, geolocation and ASNAssociated network information
216.252.162.140
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
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.theanarchistlibrary.org
Port 25: Closed/unreachable - 52.9 ms - Port 465: Closed/unreachable - 95 ms - Port 587: Closed/unreachable - 44.1 ms - 220 blackmail.sh ESMTP OpenSMTPD