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Total

DNS

Email

Security

Network

100

Availability

Domainv2ex.com

IPv42

IPv62

MX records5

StatusActive

Domain technical report

V2EX

v2ex.com

创意工作者的社区。讨论编程、设计、硬件、游戏等令人激动的话题。

Generated: 2026-08-10T13:24:09-05:00 · Cached result

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IPv42

IPv62

MX5

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 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 chain15 / 15 pts · Dns

DS and DNSKEY detected.

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

81 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 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

2 record(s)

172.66.137.6
172.66.133.207

AAAA

2 record(s)

2606:4700:10::ac42:85cf
2606:4700:10::ac42:8906

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

10 aspmx2.googlemail.com.
10 aspmx3.googlemail.com.
5 alt1.aspmx.l.google.com.
1 aspmx.l.google.com.
5 alt2.aspmx.l.google.com.

TXT

5 record(s)

"google-site-verification=7eh2_sNSP_6jwOiGCKqJ3jJVXEHWdfGRjgrFhLv3wOw"
"v=spf1 include:mailgun.org include:sendgrid.net ~all"
"google-site-verification=LM_cJR94XJIqcYJeOCscGVMWdaRUvmyz6cVOqkFplaU"
"brave-ledger-verification=6f12d87e3122d4e99d8141c99d2d2c64dfceeebe1f19282da5db884e6368c849"
"_globalsign-domain-verification=-1v2s3D2fX6Nznfe4rO5yxgCjR_BcXlogdCIqGwdB-"

NS

2 record(s)

kim.ns.cloudflare.com.
todd.ns.cloudflare.com.

SOA

1 record(s)

kim.ns.cloudflare.com. dns.cloudflare.com. 2411399185 10000 2400 604800 1800

CAA

0 record(s)

—

Not configured

DS

1 record(s)

2371 13 2 CEFAB63D02B0599EF33D215F3130B8D8D7641A79575E8B37CF4BFBFB AE507914

DNSKEY

2 record(s)

257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

5 record(s)

DNSKEY 13 2 3600 20261001203345 20260801203345 2371 v2ex.com. X7S5GZ8rpmvvtjkGt7R9dv0YcYwl1RemNRQbQHmExSOsdN1YOpdPGRMa +OXmMlNIrqCx6IKL2b57DWDiWn5Vbw==
MX 13 2 300 20260811192359 20260809172359 34505 v2ex.com. LqhbxyPGlkHyk7ELuQXBeLWfToZqJrdByCdceaKzV9K/kN7ec4F3hoTA lNYRxQHOsQwh+kfAs9oufnWmkFTBtw==
AAAA 13 2 300 20260811192359 20260809172359 34505 v2ex.com. j2SYyYWdQZFQKGY8YQ7QqTIozHWo7iZE85rdD5Ef2U3hAnk4KDViGPj2 ymzqoJeLYNlXnBpeJnz+/1wzKEVZFA==
NS 13 2 86400 20260811180936 20260809160936 34505 v2ex.com. RBRxhG25/oVqy3BNQFtBMhL/l6VToHZ0GROAwWDQgPFb1y4KE1Ly0UhO 5WIDzK0l3G0dYyQyXRQxY47uwN7aiA==
DS 13 2 86400 20260815005220 20260807234220 41446 com. YQbXjN9f10InZtM498uIKazyCTLf04TBHttUt6yP4pys3kTnsnJoYwrx rCciDG6qG//EyUORMRpTSHO4mo4dow==

NSEC

1 record(s)

\000.v2ex.com. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA

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:mailgun.org include:sendgrid.net ~all

DMARC

Not configured

—

Not configured

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

V2EX

Description

创意工作者的社区。讨论编程、设计、硬件、游戏等令人激动的话题。

Final URL

https://v2ex.com/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://v2ex.com/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

v2ex.com

Valid from

2026-08-02T12:38:18-05:00

Valid until

2026-10-31T12:38:17-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

2 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

X-Frame-OptionsImplemented

—

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

172.66.133.207, 172.66.137.6

81,15 ms

Cloudflare

1.1.1.1

172.66.133.207, 172.66.137.6

47,57 ms

Quad9

9.9.9.9

172.66.133.207, 172.66.137.6

35,31 ms

OpenDNS

208.67.222.222

172.66.133.207, 172.66.137.6

38,06 ms

AdGuard

94.140.14.14

172.66.133.207, 172.66.137.6

43,16 ms

IP, geolocation and ASNAssociated network information

172.66.137.6

No data

success

country

region

city

asn

organization

isp

172.66.133.207

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

aspmx2.googlemail.com

Port 25: Closed/unreachable - 0.7 ms - 
Port 465: Closed/unreachable - 4020.6 ms - 
Port 587: Closed/unreachable - 4003 ms -

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