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72
Total
80
DNS
45
Email
65
Security
70
Network
100
Availability
Domain58.com
IPv42
IPv61
MX records2
StatusActive
Domain technical report

【58同城 58.com】北京分类信息 - 本地 免费 高效

58.com

58同城北京分类信息网，为你提供房产、招聘、黄页、团购、交友、二手、宠物、车辆、周边游等海量分类信息，充分满足您免费查看/发布信息的需求。北京58同城，专业的分类信息网。

Generated: 2026-08-09T04:46:59-05:00 · Cached result

JSONCSVPDFVisit site
IPv42
IPv61
MX2
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

2 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

243 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 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)
43.144.202.142
42.187.161.231

AAAA

1 record(s)
2402:4e00:1208:2100:0:9d0b:4476:cb8a

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 mxbiz2.qq.com.
5 mxbiz1.qq.com.

TXT

10 record(s)
"54ad5d896527cca8bf2a4c07b3061cd28620136335f9e4412e4f1914a509b337"
"b6b7018cce31c90bb090c96dc22da6b533b74d7e9b583d25d4f0c59db9a649b4"
"MS=ms85391381"
"_globalsign-domain-verification=kMbXdicQq3Xiao4eLI3jg4vYLRqTCpVqQspbO3g0V-"
"_globalsign-domain-verification=uY2UynA9h1JClxUEyFlCp2AWqlnWWkMJ3M3VBqjo1V"
"TmHAkMZ37fnwOJCDgKGUa/na+/qDhCPq3Hbv/hm0Vdo="
"cursor-domain-verification-bd24dd=DoVliXeIHxtLMdD8xncGsVSnS"
"b6c31aa1b0bbf9269be06582f32f18785b5ff9b97221241a6aa08987adfbbae9"
"v=spf1 include:spf.mail.qq.com include:easeye-edm.com -all"
"07202dedbc63b5c52538d71cf7f6170e7412ed34d0a810acd92816b2430a45d9"

NS

2 record(s)
ns3.dnsv5.com.
ns4.dnsv5.com.

SOA

1 record(s)
ns3.dnsv5.com. enterprise3dnsadmin.dnspod.com. 1785479895 3600 180 1209600 180

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

1 record(s)
\000.58.com. A NS SOA MX TXT AAAA SRV RRSIG NSEC DNSKEY SVCB HTTPS 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:spf.mail.qq.com include:easeye-edm.com -all

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
【58同城 58.com】北京分类信息 - 本地 免费 高效
Description
58同城北京分类信息网，为你提供房产、招聘、黄页、团购、交友、二手、宠物、车辆、周边游等海量分类信息，充分满足您免费查看/发布信息的需求。北京58同城，专业的分类信息网。
Final URL
https://bj.58.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://bj.58.com/
Version
3
Server
Tengine
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
*.58.com
Valid from
2026-03-08T21:26:15-05:00
Valid until
2027-04-09T21:26:14-05:00
Days remaining
243
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

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
42.187.161.231, 43.144.202.142
74,08 ms
Cloudflare
1.1.1.1
42.187.161.231, 43.144.202.142
64,87 ms
Quad9
9.9.9.9
42.187.161.231, 43.144.202.142
83,12 ms
OpenDNS
208.67.222.222
42.187.161.231, 43.144.202.142
49,98 ms
AdGuard
94.140.14.14
42.187.161.231, 43.144.202.142
80,53 ms

IP, geolocation and ASNAssociated network information

43.144.202.142

No data
success
No
country
region
city
asn
organization
isp

42.187.161.231

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

mxbiz2.qq.com

Port 25: Closed/unreachable - 1 ms - 
Port 465: Closed/unreachable - 4006.8 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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