Domain technical report
io.vn
io.vn
IPv40
IPv60
MX0
NS8
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15
Total
45
DNS
0
Email
0
Security
0
Network
20
Availability
Domainio.vn
IPv40
IPv60
MX records0
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)0 / 30 pts · Dns
0 IPv4 address(es) detected.
IPv6 (AAAA)0 / 10 pts · Dns
0 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
8 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 policy0 / 5 pts · Dns
Certificate authority restriction.
DNS propagation0 / 10 pts · Dns
Agreement between public resolvers.
MX records0 / 20 pts · Mail
0 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 certificate0 / 55 pts · Security
No valid certificate was retrieved.
Certificate lifetime0 / 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 diversity0 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity0 / 35 pts · Network
AAAA availability.
DNS resolution0 / 40 pts · Availability
At least one address family must resolve.
HTTP response0 / 40 pts · Availability
No successful HTTP response.
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
0 record(s)—
Not configured
AAAA
0 record(s)—
Not configured
CNAME
0 record(s)—
Not configured
MX
0 record(s)—
Not configured
TXT
0 record(s)—
Not configured
NS
8 record(s)c.dns-servers.vn. e.dns-servers.vn. a.dns-servers.vn. f.dns-servers.vn. h.dns-servers.vn. d.dns-servers.vn. g.dns-servers.vn. b.dns-servers.vn.
SOA
1 record(s)dns-master.vnnic.vn. postmaster.vnnic.vn. 2023672746 3600 1800 604800 5400
CAA
0 record(s)—
Not configured
DS
2 record(s)56381 8 4 EA9094C4C9641AAF513CF298312151A53D1CDBA3FA17D8F7BBA34684 269D432590DF94B43E786755FBBACAE34D0D7B1E 56381 8 2 2A93E4C24ABE3AD962598BF8D982186C05410B56335EFE5FAE30D2D9 E1FA875D
DNSKEY
2 record(s)256 3 8 AwEAAYvsQDca4SLzG+fAGieg78wjnKjYzDm2jT5lKROa10pcEGjKJ1xI BC/2zR+FPJGydVDr2gRHt3M0R1joZ/DbOSG9lEm2DL2GaoQoxDL3krHF BFgDjhY5QxPCLjimh8gd2ppZK4nEbnoQzZH6boPx0h2M2PFocgBVzhGI lro90vtP 257 3 8 AwEAAahBwIfzIbZ5C8uwFGlku1R9RsAZev+8oGxbVVv7cUOaWFE47Hcm d3zyvE0sLD82JaV4IqUHBgu6lXOZaIr4oKUAuYz2WLN1ZSEcui+0HPeC 476bEXKy9cLIHT+5FCRJZfwBjaWea73U3BXK1mcuR8AWsTpLhKUxyyQ9 nmjgDCe/ai5MCuGmZ2AIC0xb8FdB0nLn8PSwLMTm1KYL8HTN1fsJG4SH ro+iUQLIIaFQz4CUjqMF9MYbOD/OIAqGme0NGCjyo0ocAznFATkLXzEB T54JtWCRfSsvBnEIqi6pQuLZVuj6qsKqItur34+3bUuncOvJfrLX86Xh dAs5yLNAKQM=
RRSIG
4 record(s)DNSKEY 8 2 43200 20260820165146 20260721160404 56381 io.vn. biYV99c7NGZ8u4Dnw3+d3G1QaTnmgpp+yoWf41H8C5XRWidPtgV1nN4o j5AJhTycpmqevxBaJjmgluNWjm3BxRFgG73KhDG0wmjYCF6ZycyMlzkj sBfKznH4fv0fkJee1ZYTAtblLZwadxk1d2rGe1j6SxqjpA5eGooKLAFJ gxp5fELWZCxnc4fyidu37jAG0oVD8L0GJEL/+Aw7cMuwSgxnxZFi6sOI eySvAOkvISkqvGAzaU8KIiWEE61D+oQ2eMrnTPn0fuyCuS98X9s/AS4b RlXBVj3S/EzeckxbET3vYuN2OsTgCz5OPqdiOX5mykx1RL4y6PlI61V8 LsvYVg== DNSKEY 8 2 43200 20260820165146 20260721160404 63499 io.vn. a+02dFWTgOCX4s6c31JNP8ABV44AdNYvJfmD7QSXnp6Ii3yHd5e91o4f XsWbEKHV69882ZWzUA+Bw+x2z7XcBCxULuLEUuLN1iQHgeUEUWePP/VF F5qR9a8SuZh3sBu46cP8AAH2nnxx6lJPUXj7oOFA8tsCOIh1IF1hFkO/ L3E= NS 8 2 43200 20260820120628 20260721112857 63499 io.vn. ShpzQ3UZHTeaYaroxzaAzPuhqHmRLKa7a67zctbwRcgPd+VaDvIb5283 5Q8ausb4BjDM+uujJmMH6wL/BUZ+/++Q5hcLRqcFJseIy/I45ygycSHS T3/EBzw3u+ktcCgrnSQBhqTlnYXOqwuk/fkibajKsl0N96opjc26Ho6v 2lo= SOA 8 2 43200 20260909162505 20260810152505 63499 io.vn. S9Fap8NkEmHYHhO93sv0nTI0iL+v6moJcq4G4msV0iB+L2cktnbLKJia ww59JopQj5T/+gtEv39Y1IdE3dExiWZ8ngTiU7lntcoyqkvRWgu6X93Z 6Yp5+fhEerWE5A+38a9eZQuWctDQDUfULka2ooTixFW0F1f4j1+Q0j2i 5ac=
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
No dataTitle
Description
Final URL
https://io.vn/
HTTP status
HTTP
Status
Final URL
https://io.vn/
Version
0
Server
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
UnavailableAvailable
No
Issuer
CN
Valid from
Valid until
Days remaining
Protocol
Cipher
Security headers
0 activeHSTSNot 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
ReviewDifferences detected
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.867,22 ms
Cloudflare
1.1.1.124,64 ms
Quad9
9.9.9.9273,59 ms
OpenDNS
208.67.222.222151,76 ms
AdGuard
94.140.14.14292,53 ms
IP, geolocation and ASNAssociated network information
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
io.vn
Port 25: Closed/unreachable - 38.6 ms - Port 465: Closed/unreachable - 1.3 ms - Port 587: Closed/unreachable - 1.3 ms -