IPv4 Addresses Detected
87.240.132.67
87.240.137.164
87.240.132.78
87.240.132.72
93.186.225.194
87.240.129.133
Network Information
WHOISIPv4 Network
- Organization
- VKCOMPANY-MNT
- Country
- RU
- ASN
- AS47541 VKONTAKTE-SPB-AS - LLC VK, RU
- Network
- 87.240.128.0/19
Web Services
35%The domain has at least one IPv6 address (AAAA DNS record).
✗ No AAAA record found in DNS.
The IPv6 addresses are publicly routable — not link-local, ULA, loopback or documentation ranges.
✗ IPv6 address is not globally routable.
Website reachable on port 80 when connecting via IPv6.
✗ HTTP is not accessible over IPv6.
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 is IPv6-only or IPv4-only.
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.
✗ No nameserver is reachable over IPv6.
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.
✗ 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 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.
✓ SPF record found.
A DKIM public key is published at a common selector, enabling email signature verification.
DKIM selector found: mail._domainkey
A DMARC policy record exists at _dmarc.<domain>, enabling email authentication reporting.
✓ DMARC record found.
IPv4 Baseline
15%The domain has at least one IPv4 address (A DNS record).
✓ 87.240.132.67, 87.240.137.164, 87.240.132.78, 87.240.132.72, 93.186.225.194, 87.240.129.133
Website reachable on port 80 when connecting via IPv4.
✓ HTTP (port 80) responds over IPv4 — 392ms TTFB.
Website reachable on port 443 when connecting via IPv4.
✓ HTTPS (port 443) responds over IPv4 — 614ms TTFB.
Render-Path Dependencies
not weightedAn AAAA record on this domain says nothing about the stylesheets, scripts and fonts the page then loads from somewhere else. Those are scored here, separately, because a blended figure would flatter both numbers. This score does not affect the 33% above.
The dependency chain could not be walked because this check predates dependency scoring. This is recorded as unmeasured rather than counted against the domain.
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 | 27.16 ms (p95: 30.99) | 23.04 ms (p95: 23.18) | -4.1 ms |
| IPv4 | 51.44 ms (p95: 61.56) | 60.45 ms (p95: 76.66) | +9 ms | |
| IPv6 | 28.02 ms (p95: 53.28) | 64.86 ms (p95: 65.82) | +36.8 ms | |
| Cloudflare | IPv4 | 11.73 ms (p95: 24.97) | 19.72 ms (p95: 23.74) | +8 ms |
| Cloudflare | IPv6 | 32.99 ms (p95: 39.29) | 36.06 ms (p95: 38.98) | +3.1 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.
f8270e8f-d985-4026-9d99-f40a95cd3f1d
Score History
Check History
Last 8 checks
| Date | Score | Status | Triggered By |
|---|---|---|---|
|
08 Aug 2026 18:21 UTC |
33 % | None | manual |
|
08 Aug 2026 10:47 UTC |
33 % | None | manual |
|
01 Aug 2026 02:36 UTC |
33 % | None | scheduled |
|
04 Jul 2026 03:26 UTC |
33 % | None | scheduled |
|
13 Jun 2026 01:06 UTC |
33 % | None | scheduled |
|
07 Mar 2026 01:17 UTC |
33 % | Partial | manual |
|
06 Mar 2026 19:10 UTC |
33 % | Partial | manual |
|
06 Mar 2026 18:49 UTC |
33 % | Partial | manual |