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https://rt.ru

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
77
GRADE
C
FIX
1
REVIEW
5
PASS
3
INFO
0
Probed from Singapore, Singapore
301 Moved Permanently
Checks
9
3 PASS 5 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.

B
Redirect Chain
1 redirect(s), 1847 ms total
REVIEW
1 redirect(s), 1847 ms total
Info::
Single redirect
Got: https://rt.ru → https://www.rt.ru/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1847 ms total
Got: 1847 ms

https://rt.ru

810 ms · HTTP/1.1

301

https://www.rt.ru/

1037 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://rt.ru301810 msHTTP/1.1nginx
2https://www.rt.ru/2001037 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

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

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 10240 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

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.

Why this matters

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

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<!DOCTYPE html>
<html><head>
<meta http-equiv="Pragma" content="no-cache"/>
<meta http-equiv="Expires" content="-1"/>
<meta http-equiv="CacheControl" content="no-cache"/>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link rel="shortcut icon" href="data:;base64,iVBORw0KGgo="/>

<APM_DO_NOT_TOUCH>

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</head><body>
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    <div style="width: 202px; padding-bottom: 33px">
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sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.rt.ru/
200https://rt.ru/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://rt.ru/ → https://www.rt.ru/

Consistent

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

Certificate validity

130
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, 200 ms lookup
PASS
1 A records, 200 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 87.226.162.216
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: ns4-l2.nic.ru, ns1.rostelecom.ru, ns2.rostelecom.ru, ns8-cloud.nic.ru, ns4-cloud.nic.ru, ns8-l2.nic.ru
Info::
6 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: 200 ms
Got: 200 ms
A87.226.162.216
AAAA—
CNAME—
NSns4-l2.nic.ru, ns1.rostelecom.ru, ns2.rostelecom.ru, ns8-cloud.nic.ru, ns4-cloud.nic.ru, ns8-l2.nic.ru
MX
5 mail19.rt.ru
5 mail18.rt.ru
5 mail180.rt.ru
5 mail47.rt.ru
5 mail41.rt.ru
5 mail37.rt.ru
TXT
SPF v=spf1 ip4:188.128.44.19 ip4:188.128.44.18 ip4:87.226.249.41 ip4:87.226.249.47 i...
google-site-verification=zWH64Y9ejb3u50SjilOzcUGpnQ3rXUBwU8lGz3ZM51k
_globalsign-domain-verification=nQ9TnFSxWkLSQqkU9iHbbwvEi2WUW-5eoCxP8ufb-b
ngenix-verification=f1ea5e27d5a0f24ab0ec56ac07e3bdb3
mailru-verification: 6aa936fc8fa13d31
ymSfo82FsyNTXEkyTdIbmBzqN4qY7onwo0PF8w95wOJLHHFBXCiP3dsroMdqyYJdHbO6Oqs1JzSoIhpO...
CAALookup not available with standard resolver
Resolved in 200 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+
Domain Intelligence
rt.ru — via RU-CENTER-RU, 29 years, 8 months old, hosted on ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
PASS
rt.ru — via RU-CENTER-RU, 29 years, 8 months old, hosted on ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
Info::
Domain registered until Jan 31, 2027 (9 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: ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
Got: AS12389
Domain expiry

168 days

January 31, 2027

SSL certificate

130 days

Issued by GlobalSign nv-sa

Domain age

29 years, 8 months

Registered January 14, 1997

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU

ASN AS12389

87.226.162.216

Registrar

RU-CENTER-RU

Unlocked 6 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 January 14, 1997 (29 years, 8 months ago)
Expires January 31, 2027 (9 months)
Name Servers ns1.rostelecom.ru, ns2.rostelecom.ru, ns4-cloud.nic.ru, ns4-l2.nic.ru, ns8-cloud.nic.ru, ns8-l2.nic.ru
Registrant Public Joint Stock Company "Rostelecom"
Hosting
IP Address 87.226.162.216
ASN AS12389 (ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU)
Provider ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
Data source: whois (1.7s)

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 769 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
195 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
191 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
193 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
770 ms
Total Time Total request time from DNS lookup through full response.
770 ms

Connection waterfall

DNS Lookup 195 ms TCP Connect 191 ms TLS Handshake 193 ms Server Processing 191 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.

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