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https://znaki.fm

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from New York, United Stated
200 OK
Checks
9
7 PASS 2 REVIEW
B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 40 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

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

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 40 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /
Disallow: /api/


sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

B
TLS Certificate Expiry & Recommendations
78 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

78
days left
0d 30d 60d 90d+

Recommended actions

  • 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 Records
2 A records, 13 ms lookup
PASS
2 A records, 13 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.21.89.109, 172.67.188.226
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:3033::6815:596d, 2606:4700:3036::ac43:bce2
Info::
2 nameserver(s) configured
Got: pam.ns.cloudflare.com, venkat.ns.cloudflare.com
Info::
1 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::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 13 ms
Got: 13 ms
A104.21.89.109, 172.67.188.226
AAAA2606:4700:3033::6815:596d, 2606:4700:3036::ac43:bce2
CNAME
NSpam.ns.cloudflare.com, venkat.ns.cloudflare.com
MX
1 smtp.google.com
TXT
google-site-verification=AD1SrNkDGl0TY7yykvvrCGu93WY4vt0coy1vkhpuw8A
CAALookup not available with standard resolver
Resolved in 13 ms

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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://znaki.fm

https://znaki.fm

533 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://znaki.fm200533 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (2 ms)
PASS
IPv6 reachable (2 ms)
Info::
IPv6 is configured and reachable at 2606:4700:3033::6815:596d, 2606:4700:3036::ac43:bce2
Got: 2 ms connect
IPv6 Ready
AAAA Records 2606:4700:3033::6815:596d, 2606:4700:3036::ac43:bce2 Connection Reachable (2 ms)
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.znaki.fm/
200https://znaki.fm/

Preferred variant: non-www

HTTP → HTTPS

301http://znaki.fm/ https://znaki.fm/

Consistent

A+
Domain Intelligence
znaki.fm — via Instra Corporation Pty Ltd, 9 years, 10 months old
PASS
znaki.fm — via Instra Corporation Pty Ltd, 9 years, 10 months old
Info::
Domain registered until Jul 18, 2027 (1 years, 3 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Instra Corporation Pty Ltd
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.
Domain expiry

366 days

July 18, 2027

SSL certificate

78 days

Issued by Google Trust Services

Domain age

9 years, 10 months

Registered July 18, 2016

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:3036::ac43:bce2

Registrar

Instra Corporation Pty Ltd

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Instra Corporation Pty Ltd
Created July 18, 2016 (9 years, 10 months ago)
Expires July 18, 2027 (1 years, 3 months)
Last Updated November 23, 2025
Name Servers pam.ns.cloudflare.com, venkat.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:3036::ac43:bce2
Data source: rdap (0.4s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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

Connection waterfall

DNS Lookup 8 ms TCP Connect 2 ms TLS Handshake 9 ms Server Processing 274 ms Content Transfer 81 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: EWR)
Got: cf-ray: 9f00afcd2dbfde0e-EWR
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9f00afcd2dbfde0e-EWR
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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