Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BTLS Certificate Expiry & Recommendations44 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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
A+DNS Records1 A records, 52 ms lookupPASS
| A | 34.117.206.250 |
| AAAA | — |
| CNAME | — |
| NS | ns1.vodafone-ip.de, ns2.vodafone-ip.de, auth2.dns.cogentco.com, auth1.dns.cogentco.com |
| MX | 10 mx01.hornetsecurity.com 20 mx02.hornetsecurity.com 30 mx03.hornetsecurity.com 40 mx04.hornetsecurity.com |
| TXT | 90rl8m6gk4fclnbtdyppm5ml30hc4br3 MS=ms78756071 google-site-verification=xs1IinVJoRewss708NY5ChBw8hW4Can5iwsS9xpuZUo SPF v=spf1 ip4:194.31.115.21 mx include:antispameurope.com include:spf.nl2go.com inc... facebook-domain-verification=yx2i1wde5bpdp9idovtxbhgnkcy043 google-site-verification=2i4mBRpnVlOGCKwOrVpKwFRLB7RdXm2bJpeBYZ11YR4 5c2t7dn8f6y4kgs9z5xgmcgtkwjfbwvb |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 488 ms totalPASS
https://deutschlandfunk.de
60 ms · HTTP/1.1
https://www.deutschlandfunk.de:443/
428 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://deutschlandfunk.de | 301 | 60 ms | HTTP/1.1 | |
| 2 | https://www.deutschlandfunk.de:443/ | 200 | 428 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 100 URLsPASS
User-agent: *
# print pages always have parameters
Disallow: /*.print?
Disallow: /*play=1
sitemap: https://www.deutschlandfunk.de/europathemen-100.sitemap
sitemap: https://www.deutschlandfunk.de/filter-heute-neu-100.sitemap
sitemap: https://www.deutschlandfunk.de/filter-heute-neu-audios-100.sitemap
sitemap: https://www.deutschlandfunk.de/filter-nachrichten-vertieft-100.sitemap
sitemap: https://www.deutschlandfunk.de/gesellschaftsthemen-100.sitemap
sitemap: https://www.deutschlandfunk.de/kulturthemen-100.sitemap
sitemap: https://www.deutschlandfunk.de/nachrichten-100.sitemap
sitemap: https://www.deutschlandfunk.de/nachrichten-110.sitemap
sitemap: https://www.deutschlandfunk.de/podcast-filter-296.sitemap
sitemap: https://www.deutschlandfunk.de/politikthemen-100.sitemap
sitemap: https://www.deutschlandfunk.de/thema-filter-100.sitemap
sitemap: https://www.deutschlandfunk.de/wirtschaftsthemen-100.sitemap
sitemap: https://www.deutschlandfunk.de/wissensthemen-100.sitemap
Crawl-delay: 5
- https://www.deutschlandfunkkultur.de/partei-reform-uk-nigel-farage-profitiert-vom-rechtsruck-100.html
- https://www.deutschlandfunk.de/veto-abschaffen-handlungsfaehigere-eu-100.html
- https://www.deutschlandfunk.de/bulgarien-wahl-rumen-radev-russland-eu-korruption-100.html
- https://www.deutschlandfunk.de/riskante-clouds-europas-daten-auf-amerikanischen-servern-100.html
- https://www.deutschlandfunk.de/wehrhafte-demokratie-europa-nach-der-ungarn-wahl-100.html
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencedeutschlandfunk.de — hosted on Google CloudPASS
Unknown
44 days
Issued by Google Trust Services
Unknown
Status unknown
Protects against DNS spoofing
Google Cloud
ASN AS396982
34.117.206.250
Registrar unknown
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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.
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