IPv6 Addresses Detected
2606:4700:20::ac43:4821
2606:4700:20::681a:ea6
2606:4700:20::681a:fa6
IPv4 Addresses Detected
103.198.52.31
Network Information
WHOISIPv6 Network
- Organization
- Cloudflare, Inc.
- Country
- US
- ASN
- AS13335 CLOUDFLARENET - Cloudflare, Inc., US
- Network
- 2606:4700::/32
IPv4 Network
- Organization
- Universiti Teknikal Malaysia Melaka
- Country
- MY
- ASN
- AS134722 UTEM-AS-AP - Universiti Teknikal Malaysia Melaka, MY
- Network
- 103.198.52.0/23
Web Services
35%The domain has at least one IPv6 address (AAAA DNS record).
✓ 2606:4700:20::ac43:4821, 2606:4700:20::681a:ea6, 2606:4700:20::681a:fa6
The IPv6 addresses are publicly routable — not link-local, ULA, loopback or documentation ranges.
✓ All addresses are globally routable.
Website reachable on port 80 when connecting via IPv6.
✓ HTTP (port 80) responds over IPv6.
Website reachable on port 443 when connecting via IPv6.
✓ HTTPS (port 443) responds over IPv6 — 395ms TTFB.
Website responds when connected exclusively over IPv6, with no IPv4 fallback. Simulates what happens when IPv4 is turned off.
✓ Site is fully reachable via IPv6-only.
The SSL/TLS certificate is valid, not expired, and matches the domain when connected via IPv6.
✓ Certificate valid — issued by C = US, O = Let's Encrypt, CN = E8, expires Aug 5 17:31:56 2026 GMT
The domain has both A and AAAA records for backwards compatibility during the IPv6 transition.
✓ Domain has both A and AAAA records.
Server advertises HTTP/3 support via the Alt-Svc: h3 header.
✗ No HTTP/3 support detected.
DNS & DNSSEC
25%At least one authoritative nameserver has an IPv6 address (AAAA record).
✓ Nameserver has IPv6 address.
Authoritative nameserver accepts TCP connections on port 53 over IPv6.
✓ Nameserver is reachable via IPv6 on port 53.
Nameserver actually resolves DNS queries when asked over IPv6 — not just TCP open, but functionally answering.
✓ DNS queries answered over IPv6.
Full DNSSEC chain-of-trust validation passes. Prevents DNS cache poisoning and spoofing.
✗ DNSSEC validation failed or zone is unsigned.
A PTR record exists in ip6.arpa for the IPv6 address. Important for email delivery and network diagnostics.
✗ No PTR record found.
Delegation Signer record exists in the parent zone.
✗ No DS record at parent.
RRSIG signatures are present and not expired.
✗ No valid RRSIG found.
The cryptographic algorithm used for DNSSEC signing.
No DNSKEY record found.
Email Services
25%The domain has at least one MX (Mail Exchange) DNS record pointing to a mail server.
✓ MX record found.
The highest-priority MX server resolves to an IPv6 address (AAAA record).
✓ MX server has AAAA record.
The MX server accepts SMTP connections (port 25) over IPv6 and responds with a 220 banner.
✓ SMTP port 25 responds over IPv6.
The MX server supports STARTTLS encryption when connected over IPv6.
✓ STARTTLS supported over IPv6.
A TXT record with v=spf1 exists, declaring which servers may send email for this domain.
✓ SPF record found.
A DKIM public key is published at a common selector, enabling email signature verification.
No common DKIM selector found.
A DMARC policy record exists at _dmarc.<domain>, enabling email authentication reporting.
✗ No DMARC record found.
IPv4 Baseline
15%The domain has at least one IPv4 address (A DNS record).
✓ 103.198.52.31
Website reachable on port 80 when connecting via IPv4.
✗ HTTP is not accessible over IPv4.
Website reachable on port 443 when connecting via IPv4.
✗ HTTPS is not accessible over IPv4.
DNS Resolution Performance
Comparison of A (IPv4) vs AAAA (IPv6) query times across resolvers and transports. Shows median (p50) of 3 samples.
| Resolver | Transport | A (IPv4) | AAAA (IPv6) | Delta |
|---|---|---|---|---|
| System | Default | 17.62 ms (p95: 19.03) | 21.33 ms (p95: 21.42) | +3.7 ms |
| IPv4 | 33.89 ms (p95: 35.04) | 21.95 ms (p95: 30.89) | -11.9 ms | |
| IPv6 | 34.42 ms (p95: 35.89) | 30.31 ms (p95: 37.91) | -4.1 ms | |
| Cloudflare | IPv4 | 10.92 ms (p95: 23.23) | 20.43 ms (p95: 21.09) | +9.5 ms |
| Cloudflare | IPv6 | 16.95 ms (p95: 30.36) | 39 ms (p95: 45.26) | +22.1 ms |
This result is backed by an HMAC-SHA256 signed evidence record. Scan the code or follow the link to verify the audit trail independently.
5a257be0-4800-4bce-bf6a-dc39ec789f3c
Score History
Check History
Last 18 checks
| Date | Score | Status | Triggered By |
|---|---|---|---|
|
13 Jun 2026 01:28 UTC |
71 % | Partial | scheduled |
|
13 Jun 2026 01:26 UTC |
0 % | None | scheduled |
|
13 Jun 2026 01:18 UTC |
63 % | Partial | scheduled |
|
13 Jun 2026 01:05 UTC |
63 % | Partial | scheduled |
|
07 Mar 2026 01:30 UTC |
63 % | Partial | manual |
|
07 Mar 2026 01:16 UTC |
63 % | Partial | manual |
|
06 Mar 2026 19:31 UTC |
67 % | Partial | manual |
|
06 Mar 2026 19:29 UTC |
0 % | None | manual |
|
06 Mar 2026 19:22 UTC |
63 % | Partial | manual |
|
06 Mar 2026 19:10 UTC |
63 % | Partial | manual |
|
06 Mar 2026 18:01 UTC |
63 % | Partial | manual |
|
06 Mar 2026 17:59 UTC |
0 % | None | manual |
|
06 Mar 2026 17:57 UTC |
63 % | Partial | manual |
|
06 Mar 2026 17:51 UTC |
63 % | Partial | manual |
|
06 Mar 2026 17:33 UTC |
0 % | None | manual |
|
06 Mar 2026 17:32 UTC |
0 % | None | manual |
|
06 Mar 2026 11:31 UTC |
63 % | Partial | manual |
|
04 Mar 2026 03:16 UTC |
63 % | Partial | manual |