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79
Total
70
DNS
90
Email
73
Security
50
Network
100
Availability
Domainrthk.hk
IPv41
IPv60
MX records2
StatusActive
Domain technical report

香港電台網站

rthk.hk

RTHK website

Generated: 2026-08-10T12:12:48-05:00 · Cached result

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IPv41
IPv60
MX2
NS3

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

3 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

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

117 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: www.nexusguard.com

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 response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
27.126.236.160

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 ga1.rthk.hk.
20 ga2.rthk.hk.

TXT

5 record(s)
"v=spf1 a:mail01.rthk.hk a:smtpi.rthk.org.hk a:nmu.rthk.hk a:cibs.rthk.hk include:spf-1.rthk.hk ~all"
"google-site-verification=lswhwBnwiVjabHq292VitXtNBfWhlfn3c76Bf8HU3X8"
"google-site-verification=VNk68ifg5rgV8UTKG2GF3Daio4UHwDnySuBn6zmL1GE"
"google-site-verification=5p4ysILNNraMVk8d_o0zXtnWpugNBNZW2GlRanwMjsc"
"amazonses:YROv4k+9UrbWwqWDDWvpgHWVDcIUkoDURDROm7Qh3G0="

NS

3 record(s)
ns03.scig.gov.hk.
ns01.scig.gov.hk.
ns02.scig.gov.hk.

SOA

1 record(s)
ns01.scig.gov.hk. hostmaster.cis.gov.hk. 2026081002 1200 120 15552000 3600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

2 record(s)
256 3 8 AwEAAclJVJjDD0EzP64n3XRHPrUtsK4qAoLMo0FFkDinIJg6lw1kNxuj PQ7BNM/qZMqxN3GFb8Q2oJDc2bYaJz/693LN6ZlEK2qq28gltWeSFMEQ VzFaQZxg7sQwB6ebEaSZgYMewCKCimc/erDAcvinPNJ9WYHmH6lWeMkx H97LG8aGpm9XsuUbPoeQANBwi8yz22g6PnfzQfaU4MhQ5xvJTzPt44fB jqBBniMBKUltIArjCyOmXWYawcC4hF0Y3pwqToyF0IaINmLZLly7vnML 4spC20BLhQNWnon+kwBSw9QS+3j+IdRbmXma/KVnVg7qY3uxaLv9z9dg PP/9jVFL10c=
257 3 8 AwEAAb7ky6UawUoj66+1GacWf67a4hhdaSrsemkvgakQ5XMW8DRjPJg+ qJwaSSUBOILKY9bjSHuaGetGREThmUegLsPIH9igJrleIh0D1xfuvQey 3vdS25qxl27NeFhWR4rr044g/RFjmVPxpZePRvd7jz5AcqbZhBi8xYCu rxFBczJCAXbgwPci2xl7y2KhO/9w2HHhBQ8rhwQ8FVowW7kDe1mWzN+1 5RZ0tY3rJosDtaEjbC1YhYPQq7zryyly7Yzmbg9I20116BlXacK3zfua tXwrBwYRlGbS7OEqB88hRoduc+nIaKG1jCJD1/CN1dQEZwCY/5I99Y9L HDFPN7Qa3hE=

RRSIG

2 record(s)
NS 8 2 300 20260909041550 20260810031550 19161 rthk.hk. rb7qkTeArKIx/bOevt/hc4GHPE1A3vigOoAnAL/NGhqGwbASJZ7FmsC7 /Olm4XpfBGN0+KPPO2x/I4Dc+0EL6rXlPQ+89vJsUlsKCgn6pJ4OBSmR 34R0brFrwSfWdHlfWLemrizj18ru4M6g+Q8glbp9Ek8Dgxcm+bf+Crk8 OT8PR5sR+qw89/iVlQkzr/IxtUVMYN9LNx9e8f2OeELP49hHRaUjxTu5 hFRQcmAWF9EyKbt2wYkSLxBdUDkViLMgV+w6n3oWTiyHKTYUt6cyVT1W LUwiMVxMYqj5nhMnoHkCKYzLXzDENI6gItyZ1VUUIm5TQ0DefuDF3wRQ Ix6wvQ==
TXT 8 2 300 20260909024102 20260810014102 19161 rthk.hk. DGlivBc7WniNWsQxeOo7tLCEpwKO/1d9LP1sHRIYo047YyMK508GFYmp lq58rDnIgXuIAh5dpnkama9+fPHDKuNaIOR1JHpLr0VjcsgoB5lIAXDP +4rOe59Fw24L4B0XLs+sfsVrjLF5hAZ2xcuoPa3mwvOiuyRPr+L0Ozic Xl2uLjT+S7QqTfILtA9JRu2J6jH9H/ufytRznrOv+JLldCUDje4zy5JO SrZ4rbnQAIs5noC7msJi6ShYFbAjw6recHnmia/GZEksLX6kX4hIlWEJ qBIVPkPA29KziYJTkGMYbD5mspyuhB1PINRHoDCUxYY13gV17VRwvS7L VpkhXQ==

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 a:mail01.rthk.hk a:smtpi.rthk.org.hk a:nmu.rthk.hk a:cibs.rthk.hk include:spf-1.rthk.hk ~all

DMARC

Configured
v=DMARC1; p=quarantine; rua=mailto:dmarc-report@rthk.hk

DKIM

Selector default
v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC5OhfFGTIC10YMotrt/BW4wsnK+LYbhYhzmnrr0j3TJhHNuf9pPqX+/nd04P10KVn+snIMFbte9vcRTOxozHuGhl1V00vfVVds4yXpj+j84TwXdRMROCjBwo3O3hA4H5pBJ1FOMqXHyW/TGX0eQDGPGBL72ke7IZxQUzRRuh0T/QIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
香港電台網站
Description
RTHK website
Final URL
https://www.rthk.hk/
HTTP status
200

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.rthk.hk/
Version
2
Server
2.0.0
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hongkong Post
CN
*.rthk.hk
Valid from
2026-05-21T02:49:03-05:00
Valid until
2026-12-06T01:49:02-06:00
Days remaining
117
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
✓
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
27.126.236.160
71,77 ms
Cloudflare
1.1.1.1
27.126.236.160
73,69 ms
Quad9
9.9.9.9
27.126.236.160
40,75 ms
OpenDNS
208.67.222.222
27.126.236.160
54,02 ms
AdGuard
94.140.14.14
27.126.236.160
1.231,85 ms

IP, geolocation and ASNAssociated network information

27.126.236.160

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

ga1.rthk.hk

Port 25: Closed/unreachable - 8.2 ms - 
Port 465: Closed/unreachable - 4023.6 ms - 
Port 587: Closed/unreachable - 4021 ms -

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