Skip to content
https://kontur.ru

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
403 Forbidden
Checks
9
5 PASS 3 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
Crawlability
no robots.txt, no sitemap
REVIEW
no robots.txt, no sitemap
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

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

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
TLS Certificate Expiry & Recommendations
326 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

326
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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 Records
1 A records, 159 ms lookup
PASS
1 A records, 159 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 46.17.206.11
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: a2.ns.ix.ru, ns8-l2.nic.ru, b2.ns.ix.ru, ns4-l2.nic.ru
Info::
2 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 159 ms
Got: 159 ms
A46.17.206.11
AAAA
CNAME
NSa2.ns.ix.ru, ns8-l2.nic.ru, b2.ns.ix.ru, ns4-l2.nic.ru
MX
20 ul-edge.skbkontur.ru
20 nv-edge.skbkontur.ru
TXT
202005101118023pdj0ka4xwavmtw58whfgauk3ek69q7494875kum2pgkapezvc
detectify-verification=e7bc5bceae9faed83ffd83c307775e62
2021042207140352phgdlpd7x6j1zlwyg0omsc0bho33zbfz3xjybqugowhdkbe7
google-site-verification=ojHVyltAh0s9xA2HQAVv8wljjGQz91VEJTmcQHCCTnc
202106090538085kjk0ajy8zx9b95i8mdg3prdb47oc0rqgd1nky2rv9nq2o6syv
google-site-verification=GFfCh16899gZZfox8VkqTmorKo0vFGlh1ly2M_4jSU8
202106090555024nho1ykwibge93ux7qt29coc5z8s2ydj0khxzx6x1o5hzqymam
google-site-verification=ARvz7hFSULiInY5oOK3LtKxlLnjwvt1_vndTtKw_UD8
202102250903052gwm6g7120eff6ossbgj3z6duabvet1r5h190ykm3kb122ijan
google-site-verification=kv7r09mfAxTKmK0cUJ4JQBqQ-ULzdypToVNOy_PNwr0
202106090546064fmuf5miwquoosy7xz3uney0z79msmc4crb6itdamgqq3lqhpj
202101220943022jtyyspi82oey2i2x2xzyuq8kc8bit06xh5p74mb7hnf4rwwld
SPF v=spf1 ip4:46.17.200.0/21 ip4:81.91.43.171/32 ip4:81.91.47.135/32 ip4:81.176.95....
202004222125050xtyteywrc7rq4qf4ztakz30lalbwq837cdy2izhinbv6gtae3
mailru: 8f80fe843f86d46a
CAALookup not available with standard resolver
Resolved in 159 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A+
Redirect Chain
0 redirect(s), 200 ms total
PASS
0 redirect(s), 200 ms total

https://kontur.ru

200 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://kontur.ru403200 msHTTP/1.1
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.kontur.ru/
200https://kontur.ru/

Preferred variant: non-www

HTTP → HTTPS

301http://kontur.ru/ https://kontur.ru/

Consistent

A+
Domain Intelligence
kontur.ru — via RU-CENTER-RU, 28 years, 11 months old, hosted on SKBKONTUR-AS, RU
PASS
kontur.ru — via RU-CENTER-RU, 28 years, 11 months old, hosted on SKBKONTUR-AS, RU
Info::
Domain registered until Oct 31, 2026 (6 months remaining)
Info::
Registrar: RU-CENTER-RU
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Info::
Hosting: SKBKONTUR-AS, RU
Got: AS49675
Domain expiry

110 days

October 31, 2026

SSL certificate

326 days

Issued by GlobalSign nv-sa

Domain age

28 years, 11 months

Registered October 8, 1997

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

SKBKONTUR-AS, RU

ASN AS49675

46.17.206.11

Registrar

RU-CENTER-RU

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar RU-CENTER-RU
Created October 8, 1997 (28 years, 11 months ago)
Expires October 31, 2026 (6 months)
Name Servers a2.ns.ix.ru, b2.ns.ix.ru, ns4-l2.nic.ru, ns8-l2.nic.ru
Registrant SKB Kontur production JSC
Hosting
IP Address 46.17.206.11
ASN AS49675 (SKBKONTUR-AS, RU)
Provider SKBKONTUR-AS, RU
Data source: whois (0.7s)

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 279 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
72 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
68 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
68 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
280 ms
Total Time Total request time from DNS lookup through full response.
280 ms

Connection waterfall

DNS Lookup 72 ms TCP Connect 68 ms TLS Handshake 68 ms Server Processing 71 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback