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86
Total
95
DNS
70
Email
77
Security
85
Network
100
Availability
Domainvnnic.vn
IPv41
IPv61
MX records2
StatusActive
Domain technical report

Trung tâm Internet Việt Nam (VNNIC)

vnnic.vn

Generated: 2026-08-10T19:55:53-05:00 · Cached result

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IPv41
IPv61
MX2
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

3 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 propagation10 / 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

172 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: vnnic.vn

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)
203.119.73.25

AAAA

1 record(s)
2001:dc8:1:2::25

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 mailgw2.vnnic.vn.
10 mailgw1.vnnic.vn.

TXT

5 record(s)
"w7lt3kdydg61s3ftmbqq1gcs49sfd77b"
"MS=1371B3C0CA4AE09CABA35499D57F49A84CD6CBA3"
"_795u8xhejeqc5cuc3t2qpfv2aj7okyt"
"google-site-verification=hBMqyLV-01B7C9pb4UxlAhuRst3zPFRwFpQawSv2whk"
"v=spf1 a mx ip4:203.119.11.128/25 ip4:203.119.8.115/32 ip4:203.119.8.117/32 include:amazonses.com ~all"

NS

3 record(s)
dns1.vnnic.vn.
dns3.vnnic.vn.
dns2.vnnic.vn.

SOA

1 record(s)
dns1.vnnic.vn. postmaster.vnnic.vn. 2023037407 1800 900 604800 5400

CAA

0 record(s)
—

Not configured

DS

2 record(s)
20609 8 2 E1903CA10719BC7D4F703A0512D55D04DAAA6F49E9A35F9D974EA8BF 57FBBDA9
20609 8 4 8BCE5E25B75D079F5538E6EDF535FABFC898AEF3D5D30CB4EB9BE863 F35AA9B980D0EEB979358FA4630CCD9C57D5F2BB

DNSKEY

2 record(s)
257 3 8 AwEAAbED46j+Oke1b5vFNuTB1Zpa3dRzFmxWfM9PcQH4k7YF23mI4D8M qNBDJZtXGEV1dhgJrqpKdQ60y0aqejrUruspzQqwZDU+UUDc2L4FRC/0 vEXeYNwV1m11+juqbf43BvVPI0oMEyKL0WbaGMMjRUzlqjHB10OZh3EA vPxymV+gwbRvWRjioy5n0tH4UpY8mPlgnMXpqIa49zWwJ5/uSu4yVy/Q AvFlv5jDzyBc/2HLappVaOhda4HD4vxhVcPw5om19+eIFNQchJDy8EKL Pyv9+clfPlNRj4HlXx+R3lBZvBiMHkyHaBs3DSMIaAqRskGjpFTtznay 2ahwDpnwo/U=
256 3 8 AwEAAc3csBJL2YFoU7JOCj/8IXy41xFi1nckI0eu5xmYFVYWvCQysr9Y B7uFj2oCPzjt52xRxOZKtRomvA0ftn4yDi7h4+dYM/w/ap1J/zYqMVzz jkK41rSTfNBKFocGxVqEn19zbajxsAaLIxF97lg4xCrn5+Z4gYJyf3Hk 6SSAyGWxXFbaNg36TRpHHyDZARvXAxI0UT/miFLDyegkvhglV621pl5X WfqbJQ19tavVma+9f/T6LbBuKAJ6srsJn1R+ospTDMZJhNizd54duxj3 sSE/xRpuL+S7dIxSvKV9Brrc5U6LGu+cIwYk9KI7wr2QHWEwIPeCFxTX 4GITTFq3I98=

RRSIG

4 record(s)
NS 8 2 43200 20260816184203 20260802183503 36609 vnnic.vn. SmIPSPGbHors+dwvezAb0FoE3w23QTsMLwGN1nSO7YZQ3kJkIr/XvEBm lDpo6OLsLJS5NTtwixKfRev1X2at5XOiq4ZjfFraTMS4nKOCXsAslo0E e1kdFcocFBeQ1RubJG2ZLaHcOUjW7bH2dMWKnWi39OyEWeHWuMkJxPBO RXVhWQC87pc1mrxgv9xVudsDFSXU0U6Ii92qbiKbex01Zpfku9f5fBBI rlAyKVlyXBwNILcGbO5BnNdm0hxQcmkLnmNvwj12Jydel0ikBdpZyvnq CGEjeZqV8hWM6ZZINGTzdh1paKUuTnQSxaPe9hctLpgFLN7rbHDw/2On UZoKdg==
TXT 8 2 300 20260816184203 20260802183503 36609 vnnic.vn. xmpfqEdo/BHdlDB0gCCQTyT7Uueu7sAhzI7SalDmVhPqV9UB8pJmrMIt jwwehlD9i1B9py/PJrmQZzgrVdwgTHBt1Q3rDxagSbWVKeskQtm/05zC 4YXI2Ar278d1lKQlCOjEiZrbfsLQkSWjoCvLYgJm3/+Nn2RBSLOMgw3/ 7KGrUhUr+tRT5Z0BsN8QAy6OqrdPC+dbd9MG+uDZRFjrAtVjYl22oodG MjtC7Hgy3JsNGA514T9VkbtAhEZjMGNOFTL5kfQj6T+C8/ify1K8V8p7 xhQooxBiXBtmzTwlTx6gBOO4G+Dr85F3gdYc2U9LTjUSdbn08raCfL2E p0DNkA==
A 8 2 300 20260818225001 20260804215900 36609 vnnic.vn. a0Gqd2u8R88OJK13XSkWiNK/XYWVNHRZdeBYlZVbn4QYYcpcQBGDUvjw rCiR+Wnw3dOjpLKsMaLq7EiaW65lRfaQtOzLEwuErnN3r9kdOd3xqiEK O1W+gsnIvF4MSvjSTKHVeSFLtAT3J9Ba1RVcoMVvY5NMIlHEBMrs+rJY ZIg5ATBoOrt+kfhKHADhpAiYyB6VsYHZK/gtU5IueasFaufvMbG2xn5m rnPjkqHSn03YEFZmcVdbuIAQNwoiUeFwSI4Tmos9jn+xLnMADLMQs2iW bbXDfszvZgzVqQ2r25kYMeMiecnvCOnMR3bB1sALUa0agjkO1aPC4pTC /P8ZmA==
DS 8 2 43200 20260822113021 20260723104339 52956 vn. KWPxbQ58oe57ULiNW/DYTwVYj+zC1xr5jFMkWb6yMPGzWmLMkXkyGltT VgwycjWFCHegMyIIi01qbVIZ3DlRYQOkfevPy9LXWpAqSLKe86i2kxFK V3yv2Vpp0ICpdMxRka55jKOcv52ujeeTAtQG10c45AOgcSW69ko38rI3 2Dc=

NSEC

0 record(s)
—

Not configured

NSEC3

1 record(s)
;; communications error to 69.64.44.20#53: timed out

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 a mx ip4:203.119.11.128/25 ip4:203.119.8.115/32 ip4:203.119.8.117/32 include:amazonses.com ~all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:dmarc@vnnic.vn; ruf=mailto:dmarc@vnnic.vn; fo=1; pct=50;

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Trung tâm Internet Việt Nam (VNNIC)
Description
Final URL
https://vnnic.vn/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://vnnic.vn/
Version
3
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
*.vnnic.vn
Valid from
2026-01-15T18:00:00-06:00
Valid until
2027-01-30T17:59:59-06:00
Days remaining
172
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
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
203.119.73.25
253,14 ms
Cloudflare
1.1.1.1
203.119.73.25
1.740,81 ms
Quad9
9.9.9.9
203.119.73.25
306,62 ms
OpenDNS
208.67.222.222
203.119.73.25
1.112,99 ms
AdGuard
94.140.14.14
203.119.73.25
548,05 ms

IP, geolocation and ASNAssociated network information

203.119.73.25

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

mailgw2.vnnic.vn

Port 25: Closed/unreachable - 212 ms - 
Port 465: Closed/unreachable - 4232.3 ms - 
Port 587: Closed/unreachable - 4233.4 ms -

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