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https://welt.de

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 2 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
TLS Certificate Expiry & Recommendations
321 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

321
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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
1 A records, 28 ms lookup
PASS
1 A records, 28 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 75.2.108.245
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
7 nameserver(s) configured
Got: a6-66.akam.net, a16-65.akam.net, a7-67.akam.net, a1-130.akam.net, a11-67.akam.net, ns11.netuse.de, a14-64.akam.net
Info::
1 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: 28 ms
Got: 28 ms
A75.2.108.245
AAAA—
CNAME—
NSa6-66.akam.net, a16-65.akam.net, a7-67.akam.net, a1-130.akam.net, a11-67.akam.net, ns11.netuse.de, a14-64.akam.net
MX
0 welt-de.mail.protection.outlook.com
TXT
google-site-verification: 3-vV-vfwPRUrWlLEL556mkUkYZ4Madbt7BGU2ISrM48
Ah7jEGGDP0Pu6yaw1u//ejMGWoIvfAV8qjqXDLRV8NVp/C3pjP2eKSmSH1++VdHxw8C+7UxXM+HjKsWe...
MS=ms24058498
SPF v=spf1 include:spf.asv.de include:spf.protection.outlook.com include:mail.zendes...
CAALookup not available with standard resolver
Resolved in 28 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

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), 158 ms total
PASS
1 redirect(s), 158 ms total
Info::
Single redirect
Got: https://welt.de → https://www.welt.de:443/ (301)
Info::
WWW normalization redirect

https://welt.de

106 ms · HTTP/1.1

301

https://www.welt.de:443/

52 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://welt.de301106 msHTTP/1.1
2https://www.welt.de:443/20052 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 1000 URLs
PASS
robots.txt present, sitemap with 1000 URLs
Info::
robots.txt is present
Got: 3765 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1000 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 3765 B Sitemaps referenced 3 User-agents Meta-ExternalAgent, MyCentralAIScraperBot, NovaAct, Timpibot, Claude-SearchBot, GoogleOther, ICC-Crawler, Applebot-Extended, bedrockbot, Brightbot 1.0, MistralAI-User, omgili, omgilibot, Flamingo_SearchEngine, Amazonbot, Factset_spyderbot, Operator, PerplexityBot, Datenbank Crawler, Perplexity-User, PhindBot, Webzio-Extended, AI2Bot, Ai2Bot-Dolma, GoogleOther-Video, YandexAdditionalBot, anthropic-ai, cohere-ai, img2dataset, PetalBot, SemrushBot-OCOB, SummalyBot, *, FriendlyCrawler, GoogleAgent-Mariner, GoogleOther-Image, Kangaroo Bot, MistralAI-User/1.0, meta-externalfetcher, Panscient, TerraCotta, Diffbot, EchoboxBot, FirecrawlAgent, Poseidon Research Crawler, SBIntuitionsBot, Thinkbot, Facebot, CCBot, Crawlspace, Google-CloudVertexBot, quillbot.com, QuillBot, Scrapy, TikTokSpider, wpbot, Meta-ExternalFetcher, sogou spider, Baiduspider, Andibot, DuckAssistBot, FacebookBot, Gemini-Deep-Research, ISSCyberRiskCrawler, SemrushBot-SA, Claude-User, cohere-training-data-crawler, Devin, Echobot Bot, meta-externalagent, panscient.com, QualifiedBot, aiHitBot, Bytespider, Claude-Web, netEstate Imprint Crawler, SemrushBot-SWA, WARDBot, YandexAdditional, Awario, Cotoyogi, ImagesiftBot, PanguBot, Sidetrade indexer bot, VelenPublicWebCrawler, YouBot, AhrefsBot, ClaudeBot, Google-Extended, iaskspider/2.0 Blocking No — crawling allowed
# The Facebook Crawler
User-agent: Facebot
Allow: /

User-agent: sogou spider
User-agent: Baiduspider
User-agent: AhrefsBot
User-agent: SemrushBot-SA
User-agent: Flamingo_SearchEngine
User-agent: anthropic-ai
Disallow: /

User-agent: AI2Bot
User-agent: Ai2Bot-Dolma
User-agent: aiHitBot
User-agent: Amazonbot
User-agent: Andibot
User-agent: anthropic-ai
User-agent: Applebot-Extended
User-agent: Awario
User-agent: bedrockbot
User-agent: Brightbot 1.0
User-agent: Bytespider
User-agent: CCBot
User-agent: Claude-SearchBot
User-agent: Claude-User
User-agent: Claude-Web
User-agent: ClaudeBot
User-agent: cohere-ai
User-agent: cohere-training-data-crawler
User-agent: Cotoyogi
User-agent: Crawlspace
User-agent: Datenbank Crawler
User-agent: Devin
User-agent: Diffbot
User-agent: DuckAssistBot
User-agent: Echobot Bot
User-agent: EchoboxBot
User-agent: FacebookBot
User-agent: Factset_spyderbot
User-agent: FirecrawlAgent
User-agent: FriendlyCrawler
User-agent: Gemini-Deep-Research
User-agent: Google-CloudVertexBot
User-agent: Google-Extended
User-agent: GoogleAgent-Mariner
User-agent: GoogleOther
User-agent: GoogleOther-Image
User-agent: GoogleOther-Video
User-agent: iaskspider/2.0
User-agent: ICC-Crawler
User-agent: ImagesiftBot
User-agent: img2dataset
User-agent: ISSCyberRiskCrawler
User-agent: Kangaroo Bot
User-agent: meta-externalagent
User-agent: Meta-ExternalAgent
User-agent: meta-externalfetcher
User-agent: Meta-ExternalFetcher
User-agent: MistralAI-User
User-agent: MistralAI-User/1.0
User-agent: MyCentralAIScraperBot
User-agent: netEstate Imprint Crawler
User-agent: NovaAct
User-agent: omgili
User-agent: omgilibot
User-agent: Operator
User-agent: PanguBot
User-agent: Panscient
User-agent: panscient.com
User-agent: Perplexity-User
User-agent: PerplexityBot
User-agent: PetalBot
User-agent: PhindBot
User-agent: Poseidon Research Crawler
User-agent: QualifiedBot
User-agent: QuillBot
User-agent: quillbot.com
User-agent: SBIntuitionsBot
User-agent: Scrapy
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SWA
User-agent: Sidetrade indexer bot
User-agent: SummalyBot
User-agent: TerraCotta
User-agent: Thinkbot
User-agent: TikTokSpider
User-agent: Timpibot
User-agent: VelenPublicWebCrawler
User-agent: WARDBot
User-agent: Webzio-Extended
User-agent: wpbot
User-agent: YandexAdditional
User-agent: YandexAdditionalBot
User-agent: YouBot
Disallow: /


User-agent: *
Disallow: /channels-extern/
Disallow: /sportdaten/
Disallow: /testgpr/
Disallow: /boerse/data/
Disallow: /partner/
Disallow: /reisetipps/
Disallow: /z/
Disallow: /appl/
Disallow: /woa/
Disallow: /am-sonntag/vorproduktion/
Disallow: /audiofiles/
Disallow: /out-of-home/
Disallow: /immobilien/expose
Disallow: /suche
Disallow: /onward/
Disallow: /api/
Disallow: /*?config
Disallow: /*?config=newsmli_bloomberg2
Disallow: /*.xmli
Disallow: /*?service=ajax
Disallow: /*?service=Ajax
Disallow: /*?ajax
Disallow: /*?ajax&wid
Disallow: /*?config=print
Disallow: /*?config=articleidfromurl
Disallow: /*?config=endscreen
Disallow: /*?config=iframewelt
Disallow: /*?config=langeslestueck
Disallow: /*?config=latest_videos
Disallow: /*?config=menu_home
Disallow: /*?config=mostviewed_videos
Disallow: /*?config=recommended_videos
Disallow: /*?config=regioarticlemarginal
Disallow: /*?config=zoom
Disallow: /*?config=zoomopener
Disallow: /*?noredirect=true&config=standalone
Disallow: /*?config=standalone
Disallow: /*?wtmc=XING
Disallow: /*?config=articleidfromurl
Disallow: /*?print=yes
Disallow: /*?tabPane
Disallow: /video/embeded/
Disallow: /img/*-wWIDTH*.jpg
Disallow: /assets/public/fonts/


Sitemap: https://www.welt.de/sitemaps/newssitemap/newssitemap.xml
Sitemap: https://www.welt.de/sitemaps/sitemap/sitemap.xml
Sitemap: https://www.welt.de/sitemaps/videositemap/videositemap.xml
sitemap.xml 200 OK
Type URL Set URLs 1000 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::
HTTP correctly 301-redirects to HTTPS

www / non-www

403https://www.welt.de/
200https://welt.de/

HTTP → HTTPS

301http://welt.de/ → https://www.welt.de:443/

Consistent

A+
Domain Intelligence
welt.de — hosted on AWS
PASS
welt.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

321 days

Issued by Amazon

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

75.2.108.245

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 75.2.108.245
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.7s)

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

Connection waterfall

DNS Lookup 27 ms TCP Connect 1 ms TLS Handshake 77 ms Server Processing 26 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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