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https://artistikath.de

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
1
REVIEW
8
PASS
8
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
17
8 PASS 8 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
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 178.105.101.120 does not match any cert SAN: static.120.101.105.178.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.
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
71 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

71
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.
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+
DNS Records
1 A records, 41 ms lookup
PASS
1 A records, 41 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 178.105.101.120
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: dns2.registrar-servers.com, dns1.registrar-servers.com
Info::
2 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 41 ms
Got: 41 ms
A178.105.101.120
AAAA—
CNAME—
NSdns2.registrar-servers.com, dns1.registrar-servers.com
MX
10 mail.protonmail.ch
20 mailsec.protonmail.ch
TXT
SPF v=spf1 include:_spf.protonmail.ch ~all
google-site-verification=gg5_Do9MoNNJd2w0_CEoFnMSbOzfnOxffZWJxM7mSJI
protonmail-verification=9805c41d39dd4cbb36e1d2124183cb433a9d672a
CAALookup not available with standard resolver
Resolved in 41 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+
Multi-Resolver DNS Speed
Mean 24ms across 3 resolvers (spread 12ms)
PASS
Mean 24ms across 3 resolvers (spread 12ms)
Info::
Quad9: 19ms
Got: 19ms via 9.9.9.9:53
Info::
Cloudflare: 23ms
Got: 23ms via 1.1.1.1:53
Info::
Google: 31ms
Got: 31ms via 8.8.8.8:53
A
Redirect Chain
1 redirect(s), 137 ms total
PASS
1 redirect(s), 137 ms total
Info::
Single redirect
Got: https://artistikath.de → https://artistikath.de/de (301)

https://artistikath.de

95 ms · HTTP/1.1

301

https://artistikath.de/de

42 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://artistikath.de30195 msHTTP/1.1
2https://artistikath.de/de20042 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 66 URLs
PASS
robots.txt present, sitemap with 66 URLs
Info::
robots.txt is present
Got: 155 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 66 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 155 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Allow: /
Disallow: /de/warenkorb
Disallow: /en/warenkorb
Disallow: /de/kasse
Disallow: /en/kasse
Sitemap: https://artistikath.de/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 66 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: non-www)
Info::
HTTP correctly redirects to HTTPS permanently
Got: HTTP 308

www / non-www

301https://www.artistikath.de/
200https://artistikath.de/

Preferred variant: non-www

HTTP → HTTPS

308http://artistikath.de/ → https://artistikath.de/

Consistent

A+
Domain Intelligence
artistikath.de — hosted on Hetzner
PASS
artistikath.de — hosted on Hetzner
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

Unknown

SSL certificate

71 days

Issued by Let's Encrypt

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Hetzner

ASN AS24940

178.105.101.120

Registrar

Registrar unknown

Unlocked Name servers unknown
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar
Hosting
IP Address 178.105.101.120
ASN AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
Provider Hetzner
Data source: whois (0.6s)

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

Connection waterfall

DNS Lookup 32 ms TCP Connect 30 ms TLS Handshake 34 ms Server Processing 32 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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