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https://rtl.de

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
302 Found
Checks
9
5 PASS 3 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.

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
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.rtl.de/
200https://rtl.de/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://rtl.de/ → https://rtl.de:443/

Consistent

B
TLS Certificate Expiry & Recommendations
118 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

118
days left
0d 30d 60d 90d+

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 Records
3 A records, 58 ms lookup
PASS
3 A records, 58 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 63.183.82.5, 52.28.220.42, 52.28.254.124
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-a.eurodns.com, ns-b.eurodns.org, ns-c.eurodns.eu, ns-d.eurodns.biz
Info::
4 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::
SPF record present in TXT
Info::
DNS resolution time: 58 ms
Got: 58 ms
A63.183.82.5, 52.28.220.42, 52.28.254.124
AAAA—
CNAME—
NSns-a.eurodns.com, ns-b.eurodns.org, ns-c.eurodns.eu, ns-d.eurodns.biz
MX
10 assur.rtl.de
10 marduk.rtl.de
20 sulis.rtl.de
20 sul.rtl.de
TXT
8mgn56hpk2h8vbij6o6et98h83
Sendinblue-code:6ef1bdca0140128a0b0cdffd769c529f
elevenlabs=d3LOMaZIxon3Ord_HI5dUIHJDc1StluEeZAs-iF9fsE
COA/aMCPlLOa/eLcBucw4jUuMFLWZpX9CNMxm2DM2lx252rhaCTZycXV+Do0+k92JKHg7Dua1e4zRzpU...
atlassian-domain-verification=U53qT9UWljJ6lcPAcinI5npMxdsy1/xvpTBq4p0CX7iTm3LmX2...
perplexity-ai-domain-verification-4sb00b=c4XtTzbATgpPTyDo0eoH8Zwir
x644d3sf2f2vvtzb3vp2qyyd1bm5c85g
extensis-domain-verification=54e6d2f6-0e4c-41bf-b431-62ee6cbafba9
MS=ms52349720
openai-domain-verification=dv-k3MM1WGFah2Gqy9z9kDYsbRH
miro-verification=cb749e1ffbea1463e5ad819295f54687fc362039
jamf-site-verification=tZGEVFCjsfOAp5c3ZXGX3g
atlassian-domain-verification=VBCjnmVc6Kf7SAyDmdeHFPRVe11WgWzbaIKDY19iP0mLcY5/ID...
apple-domain-verification=z15uDygTYu2zHkXr
oaUBmVBGfG6exGYqQAo2GWPZeOnb98ZpVsqkqcc01KW60xDfL72aY6VxG1LfGG7meSgTKqlWwf5UG3cS...
brevo-code:6ef1bdca0140128a0b0cdffd769c529f
knowbe4-site-verification=9f84b0069b8711b7d78efc51717ae64a
bw=68gMThWX9Ho1SVFXRjXG808Mei5H3Y64wlvu9b4qTg3h
google-site-verification=TATBLwUTAuUYbAG4JTTioqc-L3DxUkfoT0nTBnmpOm8
SPF v=spf1 a mx ip4:217.118.170.10 ip4:193.16.163.0/24 include:mail.zendesk.com incl...
mongodb-site-verification=FpUrNPM8Cxa9RyJC4t3hGyjHfoRuKgvs
atlassian-domain-verification=Kl3ByU1tsfV9fKiC7TDDZYz1uCeTeUo0SSEh5SitZ9q99Ua74O...
wiz-domain-verification=67db6b84ffd9424a08abcdc7a9eb45f947f907dd9abf450c31d0e0d5...
CAALookup not available with standard resolver
Resolved in 58 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.

A
Redirect Chain
1 redirect(s), 199 ms total
PASS
1 redirect(s), 199 ms total
Info::
Single redirect
Got: https://rtl.de → https://www.rtl.de:443/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://rtl.de

https://rtl.de

102 ms · HTTP/1.1

302

https://www.rtl.de:443/

97 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://rtl.de302102 msHTTP/1.1awselb/2.0
2https://www.rtl.de:443/20097 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

A+
Crawlability
robots.txt present, sitemap with 199 URLs
PASS
robots.txt present, sitemap with 199 URLs
Info::
robots.txt is present
Got: 707 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 199 entries
Info::
Sitemap index with 199 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 707 B Sitemaps referenced 4 User-agents GPTBot, Google-Extended, CCBot, * Blocking No — crawling allowed
User-agent: *
Disallow: /archiv/
Disallow: /kreditkarte/infos/
Disallow: /mbundle/
Disallow: /partnersuche/registration/?user
Disallow: /pf/api/*
Disallow: /pur/
Disallow: /suche/
Disallow: /vergleiche/graphs/
Disallow: /vergleiche/*?xpreview*

User-agent: GPTBot
Disallow: /
Allow: /vergleiche/
Allow: /casinos/
Allow: /sportwetten/

User-agent: Google-Extended
Disallow: /
Allow: /vergleiche/
Allow: /casinos/
Allow: /sportwetten/

User-agent: CCBot
Disallow: /
Allow: /vergleiche/
Allow: /casinos/
Allow: /sportwetten/

Sitemap: https://www.rtl.de/sitemap-index.xml
Sitemap: https://www.rtl.de/sitemap-news.xml
Sitemap: https://www.rtl.de/sitemap-section.xml
Sitemap: https://www.rtl.de/sitemap-video.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 199 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
rtl.de — hosted on AWS
PASS
rtl.de — hosted on AWS
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: AWS
Got: AS16509
Domain expiry

Unknown

SSL certificate

118 days

Issued by Amazon

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

63.183.82.5

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 63.183.82.5
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.8s)

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

Connection waterfall

DNS Lookup 42 ms TCP Connect 33 ms TLS Handshake 35 ms Server Processing 33 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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