IPv6 Addresses Detected
2600:9000:2153:f200:3:c339:6840:93a1
2600:9000:2153:4e00:3:c339:6840:93a1
2600:9000:2153:aa00:3:c339:6840:93a1
2600:9000:2153:c800:3:c339:6840:93a1
2600:9000:2153:3200:3:c339:6840:93a1
2600:9000:2153:9c00:3:c339:6840:93a1
2600:9000:2153:2c00:3:c339:6840:93a1
2600:9000:2153:3800:3:c339:6840:93a1
IPv4 Addresses Detected
43.154.240.111
43.155.124.23
43.135.105.98
Network Information
WHOISIPv6 Network
- Organization
- Amazon.com, Inc.
- Country
- US
- ASN
- AS16509 AMAZON-02 - Amazon.com, Inc., US
- Network
- 2600:9000::/28
IPv4 Network
- Organization
- ACEVILLEPTELTD-SG
- Country
- SG
- ASN
- AS132203 TENCENT-NET-AP-CN Tencent Building, Kejizhongyi Avenue, CN
- Network
- 43.154.0.0/16
Web Services
35%The domain has at least one IPv6 address (AAAA DNS record).
✓ 2600:9000:2153:f200:3:c339:6840:93a1, 2600:9000:2153:4e00:3:c339:6840:93a1, 2600:9000:2153:aa00:3:c339:6840:93a1, 2600:9000:2153:c800:3:c339:6840:93a1, 2600:9000:2153:3200:3:c339:6840:93a1, 2600:9000:2153:9c00:3:c339:6840:93a1, 2600:9000:2153:2c00:3:c339:6840:93a1, 2600:9000:2153:3800:3:c339:6840:93a1
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 — 16ms TTFB.
Website reachable on port 443 when connecting via IPv6.
✗ HTTPS is not accessible over IPv6.
Website responds when connected exclusively over IPv6, with no IPv4 fallback. Simulates what happens when IPv4 is turned off.
✗ Site is not reachable when limited to IPv6-only.
The SSL/TLS certificate is valid, not expired, and matches the domain when connected via IPv6.
✗ TLS certificate is invalid, expired, or hostname mismatch over IPv6.
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.
✗ Nameserver does not answer queries 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.
✓ DS record found at parent zone.
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.
✗ No MX record found in DNS.
The highest-priority MX server resolves to an IPv6 address (AAAA record).
✗ MX server has no IPv6 address.
The MX server accepts SMTP connections (port 25) over IPv6 and responds with a 220 banner.
✗ SMTP is not reachable over IPv6.
The MX server supports STARTTLS encryption when connected over IPv6.
✗ STARTTLS not available over IPv6.
A TXT record with v=spf1 exists, declaring which servers may send email for this domain.
✗ No 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).
✓ 43.154.240.111, 43.155.124.23, 43.135.105.98
Website reachable on port 80 when connecting via IPv4.
✓ HTTP (port 80) responds over IPv4 — 424ms TTFB.
Website reachable on port 443 when connecting via IPv4.
✓ HTTPS (port 443) responds over IPv4 — 176ms TTFB.
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 | 10.22 ms (p95: 12.39) | 20.82 ms (p95: 28.24) | +10.6 ms |
| IPv4 | 27.61 ms (p95: 29.76) | 22.27 ms (p95: 22.89) | -5.3 ms | |
| IPv6 | 33.68 ms (p95: 34.38) | 24.81 ms (p95: 31.05) | -8.9 ms | |
| Cloudflare | IPv4 | 13.68 ms (p95: 20.06) | 18.99 ms (p95: 19.96) | +5.3 ms |
| Cloudflare | IPv6 | 15.86 ms (p95: 18.88) | 16.93 ms (p95: 25.21) | +1.1 ms |
Score History
Check History
Last 2 checks
| Date | Score | Status | Triggered By |
|---|---|---|---|
|
07 Mar 2026 01:17 UTC |
43 % | Partial | manual |
|
06 Mar 2026 19:10 UTC |
43 % | Partial | manual |