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53
Total
70
DNS
20
Email
69
Security
20
Network
60
Availability
Domainuc.cn
IPv41
IPv60
MX records1
StatusActive
Domain technical report

UC浏览器官网_UC浏览器最新版下载

uc.cn

UC浏览器是全球6亿用户共同选择的智能手机浏览器，登陆UC官网免费下载UC浏览器安卓版/iPhone版，给您超快感的上网体验！

Generated: 2026-08-09T17:50:32-05:00 · 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 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

1 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
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

180 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
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 response0 / 40 pts · Availability

HTTP/2 503

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
219.133.46.154

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mail.ucweb.com.

TXT

1 record(s)
"_globalsign-domain-verification=04On-TPXC385r8uf9w7pYG_fElLoAEEWcb-2ooDhhp"

NS

2 record(s)
vip3.alidns.com.
vip4.alidns.com.

SOA

1 record(s)
vip3.alidns.com. hostmaster.hichina.com. 2025121015 3600 1200 86400 600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

5 record(s)
;; communications error to 69.64.44.20#53: timed out
;; communications error to 69.64.44.50#53: timed out
; <<>> DiG 9.18.39-0ubuntu0.22.04.4-Ubuntu <<>> uc.cn RRSIG +short +time=1 +tries=1
;; global options: +cmd
;; no servers could be reached

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

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
UC浏览器官网_UC浏览器最新版下载
Description
UC浏览器是全球6亿用户共同选择的智能手机浏览器，登陆UC官网免费下载UC浏览器安卓版/iPhone版，给您超快感的上网体验！
Final URL
https://www.uc.cn/
HTTP status
200

HTTP

Status
HTTP/2 503
Final URL
https://www.uc.cn/
Version
3
Server
Tengine/AServer-Ingress/3.0.46
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
*.uc.cn
Valid from
2026-01-05T00:11:13-06:00
Valid until
2027-02-06T00:11:12-06:00
Days remaining
180
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
219.133.46.154
249,92 ms
Cloudflare
1.1.1.1
219.133.46.154
64,93 ms
Quad9
9.9.9.9
219.133.46.154
162,27 ms
OpenDNS
208.67.222.222
219.133.46.154
69,93 ms
AdGuard
94.140.14.14
219.133.46.154
74,48 ms

IP, geolocation and ASNAssociated network information

219.133.46.154

Identified
success
Yes
country
China
country_code
CN
region
Guangdong Sheng
city
Shenzhen
latitude
22.545546
longitude
114.0683316
asn
4134
organization
CHINANET Guangdong province network
isp
No.31,Jin-rong Street
timezone
Asia/Shanghai

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

mail.ucweb.com

Port 25: Closed/unreachable - 305.6 ms - 
Port 465: Closed/unreachable - 283.4 ms - 
Port 587: Closed/unreachable - 0.6 ms -

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