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80
Total
75
DNS
90
Email
69
Security
55
Network
100
Availability
Domainyouku.com
IPv41
IPv64
MX records2
StatusActive
Domain technical report

youku.com

youku.com

Generated: 2026-08-08T17:47:50-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv64
MX2
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

4 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 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 policy5 / 5 pts · Dns

Certificate authority restriction.

!
DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

2 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
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

195 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 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

1 record(s)
106.11.43.158

AAAA

4 record(s)
2408:4001:f10::8
2408:4001:f00::1af
2408:4001:f10::fd
2408:4001:f00::3a

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
20 mx1.youku.com.
20 mx2.youku.com.

TXT

2 record(s)
"_globalsign-domain-verification=pCXbQB6tTfeT3h2EujRpeLmc-Grec1fzInO403gXtD"
"v=spf1 include:spf1.staff.mail.aliyun.com -all"

NS

4 record(s)
dns1.youku.com.
dns3.youku.com.
dns2.youku.com.
dns4.youku.com.

SOA

1 record(s)
dns1.youku.com. hostmaster.youku.com. 2017041914 3600 1200 3600 360

CAA

1 record(s)
0 issue "globalsign.com"

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:spf1.staff.mail.aliyun.com -all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarc_alibaba@service.alibaba.com; ruf=mailto:dmarc_alibaba@service.alibaba.com

DKIM

Selector default
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDUUGH+2lJG5da3X5CLyXNLuQ25iAt/bcTpxODU78nlhMcHwJUdOQK9P6E2lJaD/E7jRifeI8VSVsJU3UsplwYUPkHQbRaws9SzvrRxaJ9NFLeEbd1jtTsOyswgvNu2OdTmcpFLb43VozeiUwb8Zxr/0vHZL8tvdITYgLAMVPC7HQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Description
Final URL
https://youku.com/
HTTP status
503

HTTP

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

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
*.youku.com
Valid from
2026-01-18T20:51:06-06:00
Valid until
2027-02-19T20:51:05-06:00
Days remaining
195
Protocol
TLSv1.2
Cipher
ECDHE-ECDSA-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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
106.11.43.215
83,69 ms
Cloudflare
1.1.1.1
106.11.43.183
98,45 ms
Quad9
9.9.9.9
106.11.40.57
254,46 ms
OpenDNS
208.67.222.222
106.11.43.215
49,71 ms
AdGuard
94.140.14.14
106.11.40.57
276,48 ms

IP, geolocation and ASNAssociated network information

106.11.43.158

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

mx1.youku.com

Port 25: Closed/unreachable - 108.3 ms - 
Port 465: Closed/unreachable - 0.8 ms - 
Port 587: Closed/unreachable - 0.8 ms -

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