Skip to content
https://dw.com

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 Amsterdam, Netherlands
301 Moved Permanently
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.dw.com/
200https://dw.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://dw.com/ → https://www.dw.com/

Consistent

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

Certificate validity

339
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
2 A records, 9 ms lookup
PASS
2 A records, 9 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 194.55.26.46, 194.55.30.46
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: dns4.netcologne.de, dns3.netcologne.de, voltaire.dwelle.de, dns5.netcologne.de
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: 9 ms
Got: 9 ms
A194.55.26.46, 194.55.30.46
AAAA—
CNAME—
NSdns4.netcologne.de, dns3.netcologne.de, voltaire.dwelle.de, dns5.netcologne.de
MX
10 dw-com.mail.protection.outlook.com
TXT
amazonses:NcKjDbDrJqvaflTjJpYU24E8SwJhcD8L4P8f0UYl7rQ=
apple-domain-verification=vBdShnLUGnPMCvIg
KewQ0sSdpaTF58pY71mtuZuuRhTip0nkIZQXczy8YI3flbo0X0MX2ymCjtQSHysSX/tHB691GLsOAB4o...
jamf-site-verification=VzImhW6bKsbg86C4ZMCWfg
apple-domain-verification=71lMwTH6feCf0VJS
SPF v=spf1 ip4:194.55.30.155 ip4:194.55.30.156 ip4:194.55.26.155 ip4:194.55.26.156 i...
MS=ms20961559
teamviewer-sso-verification=57fb36a8398445fc808d31a8bee8edca
adobe-idp-site-verification=dd7ac996-1443-4180-9755-342404d53a4c
miro-verification=5b57a1504272050f14683cddfb29af797bfa1133
CAALookup not available with standard resolver
Resolved in 9 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), 76 ms total
PASS
1 redirect(s), 76 ms total
Info::
Single redirect
Got: https://dw.com → https://www.dw.com/ (301)
Info::
WWW normalization redirect

https://dw.com

62 ms · HTTP/1.1

301

https://www.dw.com/

14 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://dw.com30162 msHTTP/1.1
2https://www.dw.com/20014 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 217 URLs
PASS
robots.txt present, sitemap with 217 URLs
Info::
robots.txt is present
Got: 2759 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 217 entries
Info::
Sitemap index with 217 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2759 B Sitemaps referenced 1 User-agents FacebookBot, ia_archiver, Meta-ExternalFetcher, peer39_crawler, VelenPublicWebCrawler, Webzio-Extended, Twitterbot, Bingbot, anthropic-ai, Applebot-Extended, GPTBot, MJ12bot, SirdataBot, Yeti, facebookexternalhit, CCBot, DataForSeoBot, dotbot, FriendlyCrawler, PetalBot, Timpibot, YouBot, *, Amazonbot, Applebot, AwarioSmartBot, Google-Extended, ImagesiftBot, img2dataset, NewsNow, Ai2Bot-Dolma, Claude-Web, cohere-ai, Diffbot, magpie-crawler, omgili, SemrushBot, Googlebot, news-please, OAI-SearchBot, PerplexityBot, Scrapy, TurnitinBot, Ai2Bot, Meta-ExternalAgent, omgilibot, peer39_crawler/1.0, AhrefsBot, AwarioRssBot, Bytespider, ChatGPT-User, ClaudeBot Blocking No — crawling allowed
User-agent: *
Disallow: /search/
Disallow: /*/search/
Disallow: /overlay/
Disallow: /popups/mediaplayer/
Disallow: /popups/popup_gallery/
Disallow: /*/layoutvorlagen/
Disallow: /*/user/account$
Disallow: /*/user/activity$
Disallow: /*/user/profile$
Disallow: /*/user/password/change$
Disallow: /*/user/password/set$
Disallow: /*/user/feedback/status?type=*
Disallow: /*/user/register/confirm$
Disallow: /*/user/email/change$
Disallow: /popups/
Disallow: /media/
Disallow: /static/
Disallow: /graph-api/

User-agent: Googlebot
User-agent: Bingbot
Disallow: /*?*
Disallow: /p/*

# DW content is made available for your personal, non-commercial use. Use of any device,
# tool, or process designed to data mine or scrape the content using automated means is
# prohibited without prior written permission from Deutsche Welle.

# Disallowd Bots

User-agent: AhrefsBot
Disallow: /

User-agent: Ai2Bot
Disallow: /

User-agent: Ai2Bot-Dolma
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: Applebot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: AwarioRssBot
Disallow: /

User-agent: AwarioSmartBot
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Claude-Web
Disallow: /

User-agent: cohere-ai
Disallow: /

User-agent: DataForSeoBot
Disallow: /

User-agent: Diffbot
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: FriendlyCrawler
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: ia_archiver
Disallow: /

User-Agent: ImagesiftBot
Disallow: /

User-agent: img2dataset
Disallow: /

User-agent: magpie-crawler
Disallow: /

User-agent: Meta-ExternalAgent
Disallow: /

User-agent: Meta-ExternalFetcher
Disallow: /

User-agent: NewsNow
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: news-please
Disallow: /

User-agent: OAI-SearchBot
Disallow: /

User-agent: omgili
Disallow: /

User-agent: omgilibot
Disallow: /

User-agent: peer39_crawler
Disallow: /

User-agent: peer39_crawler/1.0
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: PetalBot
Disallow: /

User-agent: Scrapy
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: SirdataBot
Disallow: /

User-agent: Timpibot
Disallow: /

User-agent: TurnitinBot
Disallow: /

User-agent: VelenPublicWebCrawler
Disallow: /

User-agent: Webzio-Extended
Disallow: /

User-agent: Yeti
Disallow: /

User-agent: YouBot
Disallow: /


# Other Bot Rules

User-agent: Twitterbot
Allow: /*?maca=*

# Facebook link sharing preview
User-agent: facebookexternalhit
Allow: /


# Sitemaps
Sitemap: https://www.dw.com/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 217 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
dw.com — via RegistryGate GmbH, 31 years, 9 months old, hosted on DEUTSCHE-WELLE, DE
PASS
dw.com — via RegistryGate GmbH, 31 years, 9 months old, hosted on DEUTSCHE-WELLE, DE
Info::
Domain registered until Dec 6, 2026 (7 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: RegistryGate GmbH
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: DEUTSCHE-WELLE, DE
Got: AS200777
Domain expiry

146 days

December 6, 2026

SSL certificate

339 days

Issued by DigiCert Inc

Domain age

31 years, 9 months

Registered December 7, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

DEUTSCHE-WELLE, DE

ASN AS200777

194.55.30.46

Registrar

RegistryGate GmbH

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar RegistryGate GmbH
Created December 7, 1994 (31 years, 9 months ago)
Expires December 6, 2026 (7 months)
Last Updated December 7, 2025
Name Servers dns3.netcologne.de, dns4.netcologne.de, dns5.netcologne.de, voltaire.dwelle.de
DNSSEC Not enabled
Hosting
IP Address 194.55.30.46
ASN AS200777 (DEUTSCHE-WELLE, DE)
Provider DEUTSCHE-WELLE, DE
Data source: rdap (0.3s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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

Connection waterfall

DNS Lookup 2 ms TCP Connect 17 ms TLS Handshake 21 ms Server Processing 21 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.

Send Feedback