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https://sert-nfpmk.ru

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
2
REVIEW
8
PASS
7
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
7 PASS 8 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS

www / non-www

200https://www.sert-nfpmk.ru/
200https://sert-nfpmk.ru/

Inconsistent — duplicate content risk

HTTP → HTTPS

200http://sert-nfpmk.ru/

HTTP version does not redirect to HTTPS

D
CDN & Delivery
Action
No CDN (document or assets)
FIX
No CDN (document or assets)
Warning::
No CDN (document or assets)
Neither the HTML document nor the page's subresources are served through an edge network. A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN (document or assets)

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

B
DNSSEC
Unsigned (DNSSEC not deployed)
REVIEW
Unsigned (DNSSEC not deployed)
Info::
DNSSEC is not deployed
The zone is not DNSSEC-signed. Users on validating resolvers (Cloudflare 1.1.1.1, Quad9 9.9.9.9, growing default in mobile resolvers) get no protection against DNS spoofing for this domain. Most registrars now offer DNSSEC at a single click; consider enabling it for sites where authenticity matters (banking, healthcare, government).
B
CAA Records
No CAA records (any CA may issue certificates)
REVIEW
No CAA records (any CA may issue certificates)
Info::
No CAA records published
Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.
C
Reverse DNS
Action
0/1 IPs match cert SAN
REVIEW
0/1 IPs match cert SAN
Info::
PTR lookup failed for 176.57.67.184: lookup 176.57.67.184: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
B
Multi-Resolver DNS Speed
Mean 93ms across 3 resolvers (spread 108ms)
REVIEW
Mean 93ms across 3 resolvers (spread 108ms)
Info::
Google: 21ms
Got: 21ms via 8.8.8.8:53
Info::
Quad9: 129ms
Got: 129ms via 9.9.9.9:53
Info::
Cloudflare: 129ms
Got: 129ms via 1.1.1.1:53
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
TLS Certificate Expiry & Recommendations
48 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

48
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
B
CDN Cache Observability
No CDN cache-status headers in the response
REVIEW
No CDN cache-status headers in the response
Info::
No CDN cache-status headers in the response
Without an X-Cache / CF-Cache-Status / X-Vercel-Cache / Age header, you can't tell from outside whether a request hit the cache or went to origin. Operationally important: enables debugging stale-content reports and verifying cache rules. Most managed CDN platforms emit at least one of these by default; absence often means the platform's diagnostic headers are stripped at an upstream proxy.
B
Operational Status Page
No status page link detected
REVIEW
No status page link detected
Info::
No operational status page link detected
Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.
A+
DNS Records
1 A records, 114 ms lookup
PASS
1 A records, 114 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 176.57.67.184
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns2.hosting.reg.ru, ns1.hosting.reg.ru
Info::
2 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 114 ms
Got: 114 ms
A176.57.67.184
AAAA—
CNAME—
NSns2.hosting.reg.ru, ns1.hosting.reg.ru
MX
10 mx1.hosting.reg.ru
20 mx2.hosting.reg.ru
TXT
SPF v=spf1 ip4:37.140.192.62 a mx include:_spf.hosting.reg.ru ~all
CAALookup not available with standard resolver
Resolved in 114 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

A+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://sert-nfpmk.ru

https://sert-nfpmk.ru

268 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://sert-nfpmk.ru200268 msHTTP/1.1ddos-guard
A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 259 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 259 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-Agent: *
Disallow: /tilda/form*
Disallow: /tilda/rec*
Disallow: /tilda/click*
Disallow: /tilda/scroll*
Disallow: /tilda/popup*
Disallow: /tilda/cart*
Disallow: /tilda/product*
Disallow: /tilda/event*
Disallow:


Sitemap: http://sert-nfpmk.ru/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 1 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
sert-nfpmk.ru — via REGRU-RU, 6 months old, hosted on DDOS-GUARD - DDOS-GUARD LTD, RU
PASS
sert-nfpmk.ru — via REGRU-RU, 6 months old, hosted on DDOS-GUARD - DDOS-GUARD LTD, RU
Info::
Domain registered until Feb 19, 2027 (5 months remaining)
Info::
Registrar: REGRU-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: DDOS-GUARD - DDOS-GUARD LTD, RU
Got: AS57724
Domain expiry

149 days

February 19, 2027

SSL certificate

48 days

Issued by Let's Encrypt

Domain age

6 months

Registered February 19, 2026

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

DDOS-GUARD - DDOS-GUARD LTD, RU

ASN AS57724

176.57.67.184

Registrar

REGRU-RU

Unlocked 2 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 REGRU-RU
Created February 19, 2026 (6 months ago)
Expires February 19, 2027 (5 months)
Name Servers ns1.hosting.reg.ru, ns2.hosting.reg.ru
Hosting
IP Address 176.57.67.184
ASN AS57724 (DDOS-GUARD - DDOS-GUARD LTD, RU)
Provider DDOS-GUARD - DDOS-GUARD LTD, RU
Data source: whois (0.9s)

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

Connection waterfall

DNS Lookup 75 ms TCP Connect 26 ms TLS Handshake 35 ms Server Processing 169 ms Content Transfer 111 ms
A+
Health Check Endpoint
Auth-protected health endpoint at https://sert-nfpmk.ru/ping (HTTP 403)
PASS
Auth-protected health endpoint at https://sert-nfpmk.ru/ping (HTTP 403)
Info::
Auth-protected health endpoint exposed at https://sert-nfpmk.ru/ping
Got: https://sert-nfpmk.ru/ping
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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