Domain technical report
tudou.com
tudou.com
IPv41
IPv62
MX2
NS5
Analyze any domain
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75
Total
70
DNS
70
Email
69
Security
55
Network
100
Availability
Domaintudou.com
IPv41
IPv62
MX records2
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
1 IPv4 address(es) detected.
IPv6 (AAAA)10 / 10 pts · Dns
2 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
5 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 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.
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
194 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 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)106.11.43.107
AAAA
2 record(s)2408:4001:f00::1af 2408:4001:f10::8
CNAME
0 record(s)—
Not configured
MX
2 record(s)5 mx2.tudou.com. 5 mx1.tudou.com.
TXT
2 record(s)"_globalsign-domain-verification=AEoDNCjDbKvUZ22iqo1aWP3jA98OrX_zTvv8tfqPue" "v=spf1 include:spf1.staff.mail.aliyun.com -all"
NS
5 record(s);; communications error to 69.64.44.20#53: timed out dns3.youku.com. dns1.youku.com. dns2.youku.com. dns4.youku.com.
SOA
1 record(s)dns1.youku.com. hostmaster.hichina.com. 2017051810 3600 1200 3600 360
CAA
0 record(s)—
Not configured
DS
0 record(s)—
Not configured
DNSKEY
0 record(s)—
Not configured
RRSIG
1 record(s);; communications error to 69.64.44.20#53: timed out
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
1 record(s);; communications error to 69.64.44.20#53: timed out
SPF
Configuredv=spf1 include:spf1.staff.mail.aliyun.com -all
DMARC
Configuredv=DMARC1; p=none; rua=mailto:dmarc_alibaba@service.alibaba.com; ruf=mailto:dmarc_alibaba@service.alibaba.com
DKIM
Not found—
Not configured
Analyzed webpageMetadata and HTTP response
Title and description
No dataTitle
Description
Final URL
https://tudou.com/
HTTP status
HTTP
Status
HTTP/2 200
Final URL
https://tudou.com/
Version
3
Server
Tengine/Aserver
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
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
194
Protocol
TLSv1.2
Cipher
ECDHE-ECDSA-AES128-GCM-SHA256
Security headers
1 activeHSTSImplemented
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
ReviewDifferences detected
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8106.11.43.107
97,88 ms
Cloudflare
1.1.1.1106.11.43.107
131,63 ms
Quad9
9.9.9.9106.11.43.215
1.786,98 ms
OpenDNS
208.67.222.222106.11.43.246
60,59 ms
AdGuard
94.140.14.14106.11.43.71
279,35 ms
IP, geolocation and ASNAssociated network information
106.11.43.107
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
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
mx2.tudou.com
Port 25: Closed/unreachable - 107.6 ms - Port 465: Closed/unreachable - 105.8 ms - Port 587: Closed/unreachable - 105 ms -