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62
Total
70
DNS
45
Email
65
Security
65
Network
60
Availability
Domainposterous.com
IPv44
IPv60
MX records5
StatusActive
Domain technical report

posterous.com

posterous.com

Generated: 2026-08-09T01:44:11-05:00 · Cached result

JSONCSVPDFVisit site
IPv44
IPv60
MX5
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

4 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.

!
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

173 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: ec2-54-165-58-209.compute-1.amazonaws.com

✓
IPv4 diversity35 / 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 response0 / 40 pts · Availability

No successful HTTP response.

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

4 record(s)
54.165.58.209
54.159.116.102
18.208.60.216
52.5.82.174

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
10 eforward3.registrar-servers.com.
15 eforward4.registrar-servers.com.
10 eforward2.registrar-servers.com.
10 eforward1.registrar-servers.com.
20 eforward5.registrar-servers.com.

TXT

1 record(s)
"v=spf1 include:spf.efwd.registrar-servers.com ~all"

NS

2 record(s)
dns2.registrar-servers.com.
dns1.registrar-servers.com.

SOA

1 record(s)
dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1786257785 43200 3600 604800 3601

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.efwd.registrar-servers.com ~all

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data
Title
Description
Final URL
https://posterous.com/
HTTP status

HTTP

Status
Final URL
https://posterous.com/
Version
0
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Amazon
CN
*.herokuapp.com
Valid from
2025-12-31T18:00:00-06:00
Valid until
2027-01-29T17:59:59-06:00
Days remaining
173
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
18.208.60.216, 52.5.82.174, 54.159.116.102, 54.165.58.209
99,84 ms
Cloudflare
1.1.1.1
18.208.60.216, 52.5.82.174, 54.159.116.102, 54.165.58.209
64,78 ms
Quad9
9.9.9.9
18.208.60.216, 52.5.82.174, 54.159.116.102, 54.165.58.209
117,83 ms
OpenDNS
208.67.222.222
18.208.60.216, 52.5.82.174, 54.159.116.102, 54.165.58.209
84,24 ms
AdGuard
94.140.14.14
18.208.60.216, 52.5.82.174, 54.159.116.102, 54.165.58.209
44,48 ms

IP, geolocation and ASNAssociated network information

54.165.58.209

No data
success
No
country
region
city
asn
organization
isp

54.159.116.102

No data
success
No
country
region
city
asn
organization
isp

18.208.60.216

No data
success
No
country
region
city
asn
organization
isp

52.5.82.174

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

eforward3.registrar-servers.com

Port 25: Closed/unreachable - 15.7 ms - 
Port 465: Closed/unreachable - 4020.7 ms - 
Port 587: Closed/unreachable - 4027.2 ms -

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