Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
CCrawlabilityActionno robots.txt, sitemap with 0 URLsREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
Search engines may not be able to parse the sitemap. Fix XML validation errors.
An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.
Learn more ▾ ▴
Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.
Source: sitemaps.org / Google Search Central
An empty sitemap provides no value. Add <url> entries for your pages.
An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.
Learn more ▾ ▴
Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.
Source: Google Search Central / sitemaps.org
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
BTLS Certificate Expiry & Recommendations314 days until leaf cert expires — 5 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records6 A records, 67 ms lookupPASS
| A | 87.240.132.78, 87.240.129.133, 87.240.132.72, 87.240.137.164, 93.186.225.194, 87.240.132.67 |
| AAAA | — |
| CNAME | — |
| NS | ns1.vkontakte.ru, ns2.vkontakte.ru, ns3.vkontakte.ru, ns4.vkontakte.ru |
| MX | 0 mx.vk.com |
| TXT | SPF v=spf1 -all _globalsign-domain-verification=_AUAD9_npQGWkZWkHemy_YJLe_wLqZcdzcbf74TP7j _globalsign-domain-verification=uwZs48HV005U7VCshf3dueaCUvM16p09NhOSxC1fZw _globalsign-domain-verification=iAGxHRDOiw9AkcoqIoEOsJz_MkIFQ7AhHMoI0kSSRK LD6VaYCKete4UB5FIx7snCoJ8bt1nGdeCWe4my5HH5psRaTlzAmvc HARICA-w8CluQWUKn0gHs1Hcjr _globalsign-domain-verification=OU9ZfOZPEfiR3cyBs182s9FWh77AZXsGR_41NgoLlZ |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 484 ms totalPASS
https://vk.me
184 ms · HTTP/1.1
https://vk.me/app
300 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://vk.me | 301 | 184 ms | HTTP/1.1 | kittenx |
| 2 | https://vk.me/app | 200 | 300 ms | HTTP/1.1 | kittenx |
See the visual redirect chain in the HTTP Probe tab →
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencevk.me — via Regional Network Information Center, JSC dba RU-CENTER, 16 years, 11 months old, hosted on VKONTAKTE-SPB-AS vk.com, RUPASS
EXPIRED
July 24, 2026
314 days
Issued by GlobalSign nv-sa
16 years, 11 months
Registered July 24, 2009
Status unknown
Protects against DNS spoofing
VKONTAKTE-SPB-AS vk.com, RU
ASN AS47541
87.240.132.72
Regional Network Information Center, JSC dba RU-CENTER
Expiry timeline
Recommended actions
- Domain has EXPIRED — renew immediately to avoid total site outage
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.
Source: ICANN / domain-security best practice