Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DRedirect ChainAction2 redirect(s), 1272 ms totalFIX
https://arte.tv
468 ms · HTTP/1.1
https://www.arte.tv/
630 ms · HTTP/1.1
https://www.arte.tv/en/
173 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://arte.tv | 301 | 468 ms | HTTP/1.1 | Varnish |
| 2 | https://www.arte.tv/ | 301 | 630 ms | HTTP/1.1 | Varnish |
| 3 | https://www.arte.tv/en/ | 200 | 173 ms | HTTP/1.1 | Varnish |
See the visual redirect chain in the HTTP Probe tab →
Each redirect adds latency. Try to minimize the chain to 1 hop.
Redirect chain — each hop adds latency; combine into one redirect where possible.
Source: Google Search Central / web.dev
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
CCrawlabilityActionrobots.txt present, sitemap with 13 URLsREVIEW
Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.
Disallow: / in robots.txt blocks every search crawler — the site becomes invisible in organic search.
Learn more ▾ ▴
Common deployment mistake: a staging robots.txt with `User-agent: * / Disallow: /` ships to prod. The site falls out of search results within days. Verify your robots.txt is the production-intended version. If this is intentional (private site), no action needed.
Source: Google Search Central
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
# Version: .0
# Real humans, replicants and robots are not allowed to enter
User-agent: *
Disallow: /
- https://www.arte.tv/static/sitemap_fr.xm...
- https://www.arte.tv/static/sitemap_de.xm...
- https://www.arte.tv/static/sitemap_en.xm...
- https://www.arte.tv/static/sitemap_es.xm...
- https://www.arte.tv/static/sitemap_pl.xm...
- https://www.arte.tv/static/sitemap_it.xm...
- https://www.arte.tv/static/opa_static/si...
- https://www.arte.tv/static/opa_static/si...
- https://www.arte.tv/static/opa_static/si...
- https://www.arte.tv/static/opa_static/si...
- https://www.arte.tv/static/opa_static/si...
- https://www.arte.tv/static/opa_static/si...
- https://faq.arte.tv/hc/sitemap.xml
BTLS Certificate Expiry & Recommendations66 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, 30 ms lookupPASS
| A | 34.40.38.97 |
| AAAA | — |
| CNAME | — |
| NS | sec2.rcode0.net, sec1.rcode0.net, dns1.sdv.fr, dns2.sdv.fr |
| MX | 10 de-smtp-inbound-1.mimecast.com 10 de-smtp-inbound-2.mimecast.com |
| TXT | SPF v=spf1 include:spf.protection.outlook.com include:de._netblocks.mimecast.com -al... openai-domain-verification=dv-6cdE0C3x9TjGKZifbLpyC2HU google-site-verification=6yYATCeWamOTG0WYCrFNapLThWsuNNfG-Y5fORXwVxA linkedin-site-verification=96b2ae90-7b3f-4958-955e-27828104d97b 6082fe991b8f43d52bbed196ceaf6cf5718af4b8653b7649f443a6183a249769 bw=MPFiYNQceJwwesRAOssHUbVwmBudL5nIRXtQ9EiAKUyQ apple-domain-verification=1xbyf7jWyxBVqUYf atlassian-domain-verification=UO9rlNNhuvvruI8N3MkSssSGzFdqNhRyH20XQktQYxxoPaS6uS... o0zBOP6rX578IuQEtwRgqkAaeR+5X8eqkbavmnVQ/TdJDxiT0D6PuKHIebxIfdt0g4JSlQ0TQOWBWW4u... google-site-verification=dHPuZ5Mdf69d_Evo-qtucFyN0LrezyV8-soP8ivK-tA 466A27AD35C68FC3ECD1AF429ADCB749FF8D9F09 google-gws-recovery-domain-verification=46571573 atlassian-domain-verification=wJYfJmzvKtTC2CaMd4cACh01LdbqjPasKtchBM8OSzYpH/R5Wr... |
| 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.
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencearte.tv — via Gandi SAS, 22 years, 3 months old, hosted on Google CloudPASS
285 days
April 27, 2027
66 days
Issued by Corporation Service Company
22 years, 3 months
Registered April 27, 2004
Not enabled
Protects against DNS spoofing
Google Cloud
ASN AS396982
34.40.38.97
Gandi SAS
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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