Skip to content
https://www.ndmnet.eu

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
1
REVIEW
6
PASS
10
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
10 PASS 6 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
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
Reverse DNS
0/1 IPs match cert SAN
REVIEW
0/1 IPs match cert SAN
Info::
PTR for 208.115.251.74 does not match any cert SAN: de7000-r.iaasdns.com
Common when behind a CDN or shared hosting (PTR points at the provider's hostname). Mismatch can also affect mail deliverability if this IP sends email -- many MTAs reject mail when forward+reverse DNS disagree.
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
75 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

75
days left
0d 30d 60d 90d+

Recommended actions

  • 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
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, 44 ms lookup
PASS
1 A records, 44 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 208.115.251.74
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: ndmnet.eu
Info::
2 nameserver(s) configured
Got: ian.ns.cloudflare.com, raina.ns.cloudflare.com
Info::
1 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 44 ms
Got: 44 ms
A208.115.251.74
AAAA—
CNAMEndmnet.eu
NSian.ns.cloudflare.com, raina.ns.cloudflare.com
MX
0 mail.ndmnet.eu
TXT
SPF v=spf1 ip4:85.195.73.202 ip4:198.46.143.182 ip4:23.94.209.142 include:relay.mail...
CAALookup not available with standard resolver
Resolved in 44 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 CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more ▾

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

A+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
CNAME does not point at a known takeover-able service
A+
CAA Records
issue: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | iodef configured
PASS
issue: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | issuewild: comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com | iodef configured
Info::
CAA issue tag present — authorized CA(s): comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com
Info::
CAA iodef tag present (failed-issuance notifications enabled)
A+
Multi-Resolver DNS Speed
Mean 19ms across 3 resolvers (spread 29ms)
PASS
Mean 19ms across 3 resolvers (spread 29ms)
Info::
Quad9: 1ms
Got: 1ms via 9.9.9.9:53
Info::
Cloudflare: 28ms
Got: 28ms via 1.1.1.1:53
Info::
Google: 30ms
Got: 30ms via 8.8.8.8:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://www.ndmnet.eu

https://www.ndmnet.eu

77 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.ndmnet.eu20077 msHTTP/1.1LiteSpeed
A+
Crawlability
robots.txt present, sitemap with 10 URLs
PASS
robots.txt present, sitemap with 10 URLs
Info::
robots.txt is present
Got: 129 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 10 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 129 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /
Disallow: /beta/
Disallow: /status/
Disallow: /form-result.php
Sitemap: https://www.ndmnet.eu/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 10 entries Valid XML Yes
Sample URLs:
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: www)
Info::
HTTP correctly redirects to HTTPS permanently
Got: HTTP 301

www / non-www

200https://www.ndmnet.eu/
301https://ndmnet.eu/

Preferred variant: www

HTTP → HTTPS

301http://www.ndmnet.eu/ → https://www.ndmnet.eu/

Consistent

A+
Domain Intelligence
ndmnet.eu — via SupportHost OÜ, hosted on LIMESTONENETWORKS - Limestone Networks, Inc., US
PASS
ndmnet.eu — via SupportHost OÜ, hosted on LIMESTONENETWORKS - Limestone Networks, Inc., US
Info::
Registrar: SupportHost OÜ
Info::
Hosting: LIMESTONENETWORKS - Limestone Networks, Inc., US
Got: AS46475
Domain expiry

Unknown

SSL certificate

75 days

Issued by Let's Encrypt

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

LIMESTONENETWORKS - Limestone Networks, Inc., US

ASN AS46475

208.115.251.74

Registrar

SupportHost OÜ

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Registrar SupportHost OÜ
Name Servers raina.ns.cloudflare.com, ian.ns.cloudflare.com
Registrant NOT DISCLOSED!
Hosting
IP Address 208.115.251.74
ASN AS46475 (LIMESTONENETWORKS - Limestone Networks, Inc., US)
Provider LIMESTONENETWORKS - Limestone Networks, Inc., US
Data source: whois (1.5s)
A+
HTTP Probe Timing
Total 171 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
95 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
24 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
27 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
171 ms
Total Time Total request time from DNS lookup through full response.
172 ms

Connection waterfall

DNS Lookup 95 ms TCP Connect 24 ms TLS Handshake 27 ms Server Processing 25 ms Content Transfer 1 ms
A+
Health Check Endpoint
Auth-protected health endpoint at https://www.ndmnet.eu/status (HTTP 403)
PASS
Auth-protected health endpoint at https://www.ndmnet.eu/status (HTTP 403)
Info::
Auth-protected health endpoint exposed at https://www.ndmnet.eu/status
Got: https://www.ndmnet.eu/status
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback