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Total

DNS

Email

Security

Network

100

Availability

Domainwenjuan.com

IPv41

IPv60

MX records1

StatusActive

Domain technical report

问卷网 - 用 AI 倾听，一站式问卷调研平台

wenjuan.com

问卷网全新升级为 AI 问卷平台，一句话或一份参考资料，即刻生成专属问卷。由 DeepSeek 等顶级大模型驱动，同时内置 64 万精美模板，支持一键分享至微信、微博、QQ 等多渠道，助企业与个人高效完成问卷、表单、考试、投票的创建、收集与数据分析。用 AI，也用爱，倾听每一份声音。

Generated: 2026-08-11T02:04:17-05:00 · Cached result

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IPv41

IPv60

MX1

NS2

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 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).

SPF0 / 25 pts · Mail

SPF policy not found.

DMARC0 / 25 pts · Mail

DMARC policy not found.

✓

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

129 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

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/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

121.4.25.139

AAAA

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

CNAME

1 record(s)

www.wenjuan.com.

MX

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

TXT

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

NS

2 record(s)

ns4.dnsv2.com.
ns3.dnsv2.com.

SOA

3 record(s)

www.wenjuan.com.
waf-slb.wenjuan.com.
lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

CAA

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

DS

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

DNSKEY

3 record(s)

www.wenjuan.com.
waf-slb.wenjuan.com.
lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

RRSIG

0 record(s)

—

Not configured

NSEC

1 record(s)

\000.wenjuan.com. A NS SOA MX TXT AAAA SRV RRSIG NSEC DNSKEY SVCB HTTPS CAA

NSEC3

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

SRV

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

NAPTR

1 record(s)

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

TLSA

3 record(s)

www.wenjuan.com.
waf-slb.wenjuan.com.
lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

SSHFP

3 record(s)

www.wenjuan.com.
waf-slb.wenjuan.com.
lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com.

SPF

Not configured

—

Not configured

DMARC

Not configured

—

Not configured

DKIM

Selector mail

k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9f8F9wv6YXzdSUUVQQqb43WeJ gDNE1ky0TwFgr4dmUNqFLgAtHDiMxHEg758FrTOsZvBeVfDfIR1ekXzqqUg5jbrU uKsguxOhAUWMfDW0DwDfUZadJ2kyOnmrP4Nmzf4Giu+ipYgNBdaQCel+5DJg9rzj mznJAYeq+8lNjkKQOQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

问卷网 - 用 AI 倾听，一站式问卷调研平台

Description

Final URL

https://www.wenjuan.com/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.wenjuan.com/

Version

Server

openresty

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

*.wenjuan.com

Valid from

2025-11-16T18:00:00-06:00

Valid until

2026-12-18T17:59:59-06:00

Days remaining

129

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

1 active

✓

HSTSImplemented

—

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

121.4.25.139

76,34 ms

Cloudflare

1.1.1.1

121.4.25.139

307,92 ms

Quad9

9.9.9.9

121.4.25.139

265,55 ms

OpenDNS

208.67.222.222

121.4.25.139

285,41 ms

AdGuard

94.140.14.14

121.4.25.139

281,82 ms

IP, geolocation and ASNAssociated network information

121.4.25.139

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

lb-i7f9hy3x-pmvgaizq891o3ld5.clb.ap-shanghai.tencentclb.com

Port 25: Closed/unreachable - 0.9 ms - 
Port 465: Closed/unreachable - 4028 ms - 
Port 587: Closed/unreachable - 4016.5 ms -

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