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Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
10
PASS
6
INFO
0
Probed from New York, United Stated
200 OK
Checks
17
6 PASS 10 REVIEW 1 FIX
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.
Got: document origin: Hetzner
No CDN (document or assets)
Document origin Hetzner

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

B
DNS Records
1 A records, 345 ms lookup
REVIEW
1 A records, 345 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 91.98.237.13
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Warning::
DNS resolution is slow (345 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 345 ms
A91.98.237.13
AAAA
CNAME
NS
MX
TXT
CAALookup not available with standard resolver
Resolved in 345 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

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)

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

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.
B
Reverse DNS
0/1 IPs match cert SAN
REVIEW
0/1 IPs match cert SAN
Info::
PTR for 91.98.237.13 does not match any cert SAN: static.13.237.98.91.clients.your-server.de
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.
B
Multi-Resolver DNS Speed
Mean 110ms across 3 resolvers (spread 20ms)
REVIEW
Mean 110ms across 3 resolvers (spread 20ms)
Info::
Quad9: 100ms
Got: 100ms via 9.9.9.9:53
Info::
Cloudflare: 111ms
Got: 111ms via 1.1.1.1:53
Info::
Google: 120ms
Got: 120ms via 8.8.8.8:53
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
55 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

55
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
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.
B
Health Check Endpoint
No conventional health endpoint found
REVIEW
No conventional health endpoint found
Info::
No conventional health endpoint found
Health endpoints (/health, /healthz, /status, /ping, /api/health) let uptime monitors, load balancers, and orchestration systems (Kubernetes, ECS, Fly.io) verify the service is alive. Marketing sites and small services often skip them legitimately; flagged as Info, not a failure. Probe results: /api/health: 404, /health: 404, /healthz: 404, /ping: 404, /status: 404.
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://www.itssmart.it

https://www.itssmart.it

669 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.itssmart.it200669 msHTTP/1.1
A+
Crawlability
robots.txt present, sitemap with 30 URLs
PASS
robots.txt present, sitemap with 30 URLs
Info::
robots.txt is present
Got: 177 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 30 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 177 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-Agent: *
Allow: /
Disallow: /pannello-drive-8f3k2x9q
Disallow: /gestionale
Disallow: /api
Disallow: /iscriviti/stampa-interna

Sitemap: https://www.itssmart.it/sitemap.xml

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 308

www / non-www

200https://www.itssmart.it/
301https://itssmart.it/

Preferred variant: www

HTTP → HTTPS

308http://www.itssmart.it/ https://www.itssmart.it/

Consistent

A+
Domain Intelligence
itssmart.it — via ARUBA-REG, 8 years, 2 months old, hosted on Hetzner
PASS
itssmart.it — via ARUBA-REG, 8 years, 2 months old, hosted on Hetzner
Info::
Domain registered until Aug 21, 2027 (11 months remaining)
Info::
Registrar: ARUBA-REG
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: Hetzner
Got: AS24940
Domain expiry

343 days

August 21, 2027

SSL certificate

55 days

Issued by Let's Encrypt

Domain age

8 years, 2 months

Registered August 21, 2018

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Hetzner

ASN AS24940

91.98.237.13

Registrar

ARUBA-REG

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 ARUBA-REG
Created August 21, 2018 (8 years, 2 months ago)
Expires August 21, 2027 (11 months)
Last Updated September 6, 2026
Name Servers dns.technorail.com, dns2.technorail.com, dns3.arubadns.net, dns4.arubadns.cz
Registrant Fondazione ISTITUTO TECNICO SUPERIORE NUOVE TECNOLOGIE PER IL MADE IN ITALY
Hosting
IP Address 91.98.237.13
ASN AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
Provider Hetzner
Data source: whois (1.3s)

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

Connection waterfall

DNS Lookup 225 ms TCP Connect 95 ms TLS Handshake 102 ms Server Processing 136 ms Content Transfer 97 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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