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https://rtbf.be

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
1
REVIEW
5
PASS
3
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
3 PASS 5 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.

B
Redirect Chain
1 redirect(s), 1746 ms total
REVIEW
1 redirect(s), 1746 ms total
Info::
Single redirect
Got: https://rtbf.be → https://www.rtbf.be/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1746 ms total
Got: 1746 ms

https://rtbf.be

455 ms · HTTP/1.1

301

https://www.rtbf.be/

1291 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://rtbf.be301455 msHTTP/1.1
2https://www.rtbf.be/2001291 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

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.rtbf.be/
200https://rtbf.be/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://rtbf.be/ → https://www.rtbf.be/

Consistent

B
HTTP Probe Timing
Total 814 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
322 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
2 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
18 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
814 ms
Total Time Total request time from DNS lookup through full response.
815 ms

Connection waterfall

DNS Lookup 322 ms TCP Connect 2 ms TLS Handshake 18 ms Server Processing 473 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
316 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

316
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
4 A records, 1026 ms lookup
PASS
4 A records, 1026 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.1.63, 151.101.65.63, 151.101.129.63, 151.101.193.63
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: ns2.rtbf.be, ns2.belnet.be, ns3.belnet.be, ns.rtbf.be, ns1.rtbf.be, ns1.belnet.be
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
Warning::
DNS resolution is slow (1026 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1026 ms
A151.101.1.63, 151.101.65.63, 151.101.129.63, 151.101.193.63
AAAA—
CNAME—
NSns2.rtbf.be, ns2.belnet.be, ns3.belnet.be, ns.rtbf.be, ns1.rtbf.be, ns1.belnet.be
MX
10 rtbf-be.mail.protection.outlook.com
TXT
adobe-idp-site-verification=eec932d1-b36b-497a-b260-e7317d329cdc
have-i-been-pwned-verification=3d272448f9be93efcf4a66f4af5aa431
MS=ms77582154
brevo-code:e07b969f4c8fffcf9d2e07ad4056bb53
autodesk-domain-verification=mY9hTxRMXVr-PfY0HDPh
brevo-code:4fc6d3b805c3efd1b5422c5ebf269bd2
teamviewer-sso-verification=16a378ed1f9f458cacce2ab7dbb8daa5
google-site-verification=TsdqdBbIdJfCx_2Vh6RCUW1d-s47Rt5V8MXHEpflq_A
gamma-domain-verification-44b90b=tVw87iKQIcvyb6y5s3LygWoDz
google-site-verification=WPoq-hpsYgO6rQ9NdswOXF6vr6FlNl03DPXWJUD4UU0
successfactors-site-verification=NDY0ZWFkM2QzYzcyZjFkNmQyNjIxMmJjZmIwNmQ5ODZjZTY...
successfactors-site-verification=MDFjNGM0NjExZGE3NDc0YmU0OWU4YTQyNjNhMDEwNjc4ZmF...
globalsign-domain-verification=Wq9iztGUzQcBBi1OLrEOlXtefwOzX7yfvhbsw-CVdo
_globalsign-domain-verification=B57sRQpmte4G4w-gavZbVNmmNsMxGp5kcL19UP2599
_globalsign-domain-verification=dAnUnX2MJVn73TgoWV5IfY-NOgbhmdDK-7oDGEnJG5
HARICA-LgcTV1oNgPhhy5fyNqJ
cisco-ci-domain-verification=454e8b9db25c0abceabdc4c113acec1a11a4208538ccaddbb88...
google-site-verification=qek2v4PU81LUo6kppmcXAXMJ4O9xyblE7a2_p2eRF7I
qdxTvpRGqkh16FXqeYbDsfehi1AWkvHUoNh3QYAvbxeAm9PFUikmSTvnGOAJOpalLxqUrYqGGQd5Zgps...
SPF v=spf1 a:rtbf-smtp.infomaniak.ch a:web9.xaurum.be ip4:213.52.186.140/30 ip4:188....
CAALookup not available with standard resolver
Resolved in 1026 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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Crawlability
robots.txt present, sitemap with 5 URLs
PASS
robots.txt present, sitemap with 5 URLs
Info::
robots.txt is present
Got: 916 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 5 entries
Info::
Sitemap index with 5 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 916 B Sitemaps referenced 1 User-agents DuckAssistBot, PerplexityBot, Amazonbot, ClaudeBot, GPTBot, OAI-SearchBot, anthropic-ai, Meta-ExternalFetcher, Bytespider, CCBot, ChatGPT-User, cohere-ai, Diffbot, FacebookBot, Google-Extended, Meta-ExternalAgent, *, AI2Bot, Applebot-Extended, Claude-Web Blocking No — crawling allowed
User-Agent: *
Allow: /

User-Agent: *
Disallow: /embed

User-Agent: *
Disallow: /embed/

User-Agent: *
Disallow: /auvio/embed

User-Agent: *
Disallow: /auvio/embed/

User-Agent: AI2Bot
Disallow: /

User-Agent: Amazonbot
Disallow: /

User-Agent: Applebot-Extended
Disallow: /

User-Agent: anthropic-ai
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: Diffbot
Disallow: /

User-Agent: DuckAssistBot
Disallow: /

User-Agent: FacebookBot
Disallow: /

User-Agent: Google-Extended
Disallow: /

User-Agent: GPTBot
Disallow: /

User-Agent: Meta-ExternalAgent
Disallow: /

User-Agent: Meta-ExternalFetcher
Disallow: /

User-Agent: OAI-SearchBot
Disallow: /

User-Agent: PerplexityBot
Disallow: /

Sitemap: https://www.rtbf.be/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 5 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
rtbf.be — hosted on Fastly
PASS
rtbf.be — hosted on Fastly
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: Fastly
Got: AS54113
Domain expiry

Unknown

SSL certificate

316 days

Issued by Hellenic Academic and Research Institutions CA

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.129.63

Registrar

Registrar unknown

Unlocked 5 NS records
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar
Name Servers ns1.belnet.be, ns2.rtbf.be, ns1.rtbf.be, ns2.belnet.be, ns3.belnet.be
Registrant Not shown, please visit www.dnsbelgium.be for webbased whois.
Hosting
IP Address 151.101.129.63
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
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

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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