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https://one.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
94
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.

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.one.com/
200https://one.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://one.com/ → https://one.com/

Consistent

B
TLS Certificate Expiry & Recommendations
47 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

47
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
2 A records, 52 ms lookup
PASS
2 A records, 52 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 195.47.247.8, 195.47.247.9
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2a02:2350:6::6514:e26d
Info::
2 nameserver(s) configured
Got: auth.g1-dns.one, auth.g1-dns.com
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: 52 ms
Got: 52 ms
A195.47.247.8, 195.47.247.9
AAAA2a02:2350:6::6514:e26d
CNAME—
NSauth.g1-dns.one, auth.g1-dns.com
MX
10 mx4.pub.mailpod12-cph3.one.com
10 mx3.pub.mailpod12-cph3.one.com
10 mx1.pub.mailpod12-cph3.one.com
10 mx2.pub.mailpod12-cph3.one.com
TXT
apple-domain-verification=NW7F5wIbiIMoDyGn
facebook-domain-verification=bzipsayq3fcwysb04sfrb7n28umr70
google-site-verification=SJnzgdADXmE_K3rQEbVVmYXgxa_0Auh5oDN4KBGp_n8
google-site-verification=PxhP_oeeJYM6XtUKPbyWuAA4BSR1OgKY5Il_zMhZZ4g
status-page-domain-verification=jxn9sv5yjjk0
SPF v=spf1 include:_spf.one.com include:spf.mail.intercom.io include:mail.zendesk.co...
atlassian-domain-verification=KKeihQSanTHe0l1pqlAF48oghg9rSqxhRZakMd/Gq8e8xTF/ma...
MS=ms80165880
slack-domain-verification=cKfMkGzW2T6D9IwrAfw3WqEMiCNY7Xsnd5cMo7VQ
0c2ce30eb74af62b8f39fe80d2821090
CAALookup not available with standard resolver
Resolved in 52 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), 224 ms total
PASS
1 redirect(s), 224 ms total
Info::
Single redirect
Got: https://one.com → https://www.one.com/ (301)
Info::
WWW normalization redirect

https://one.com

78 ms · HTTP/1.1

301

https://www.one.com/

146 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://one.com30178 msHTTP/1.1Varnish
2https://www.one.com/200146 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2a02:2350:6::6514:e26d
Got: 17 ms connect
IPv6 Ready
AAAA Records 2a02:2350:6::6514:e26d Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 14 URLs
PASS
robots.txt present, sitemap with 14 URLs
Info::
robots.txt is present
Got: 1972 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 14 entries
Info::
Sitemap index with 14 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1972 B Sitemaps referenced 13 User-agents * Blocking No — crawling allowed
User-agent: * 
Allow: /en/admin/login
Allow: /da/admin/login
Allow: /de/admin/anmelden
Allow: /fr/admin/connecter
Allow: /nl/admin/inloggen
Allow: /no/admin/login
Allow: /sv/admin/login
Allow: /es/admin/acceso
Allow: /pt/admin/acesso
Allow: /it/admin/accedi
Disallow: /admin/
Disallow: /chat
Disallow: /en/resubscribe
Disallow: /it/rinnova-la-sottoscrizione
Disallow: /nl/opnieuw-abonneren
Disallow: /no/abonner-paa-nytt
Disallow: /pt/resubscrever
Disallow: /sv/aterregistrera
Disallow: /da/gentegn
Disallow: /de/weiter-abonnieren
Disallow: /es/nueva-suscripcion
Disallow: /fr/resouscrire
Disallow: /maintenance/
Disallow: /en/edc/
Disallow: /*.do$
Disallow: /en/size
Disallow: /sv/storlek
Disallow: /da/storrelse
Disallow: /no/storrelse
Disallow: /de/groesse
Disallow: /fr/taille
Disallow: /nl/grotte
Disallow: /packagesize.do
Disallow: /office-order-step2.do
Disallow: /*-begynner$
Disallow: /*-pluss$
Disallow: /*-baukasten$
Disallow: /*-debutant$
Disallow: /*-affaires$
Disallow: /fr/commerce-electronique-avec-site-web
Disallow: /es/solicitar
Disallow: /it/ordine
Disallow: /pt/encomenda
Disallow: /da/bestilling
Disallow: /de/bestellung
Disallow: /en/order
Disallow: /fr/commande
Disallow: /nl/bestelling
Disallow: /no/bestilling
Disallow: /sv/bestaellning
Disallow: /cs/objednavka
Disallow: /pt-BR/encomenda
Disallow: /fi/tilaus
Disallow: /pl/zamowienie

Sitemap: https://www.one.com/en-gb/sitemap.xml
Sitemap: https://www.one.com/da-dk/sitemap.xml
Sitemap: https://www.one.com/sv-se/sitemap.xml
Sitemap: https://www.one.com/fr-fr/sitemap.xml
Sitemap: https://www.one.com/nb-no/sitemap.xml
Sitemap: https://www.one.com/es-es/sitemap.xml
Sitemap: https://www.one.com/fi-fi/sitemap.xml
Sitemap: https://www.one.com/nl-nl/sitemap.xml
Sitemap: https://www.one.com/it-it/sitemap.xml
Sitemap: https://www.one.com/pt-pt/sitemap.xml
Sitemap: https://www.one.com/en-us/sitemap.xml
Sitemap: https://www.one.com/de-de/sitemap.xml
Sitemap: https://www.one.com/nl-be/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 14 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
one.com — via CSL Computer Service Langenbach GmbH d/b/a joker.com, 34 years, 8 months old
PASS
one.com — via CSL Computer Service Langenbach GmbH d/b/a joker.com, 34 years, 8 months old
Info::
Domain registered until Feb 13, 2033 (6 years, 10 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: CSL Computer Service Langenbach GmbH d/b/a joker.com
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.
Domain expiry

2404 days

February 13, 2033

SSL certificate

47 days

Issued by Let's Encrypt

Domain age

34 years, 8 months

Registered February 12, 1992

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Unknown

2a02:2350:6::6514:e26d

Registrar

CSL Computer Service Langenbach GmbH d/b/a joker.com

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar CSL Computer Service Langenbach GmbH d/b/a joker.com
Created February 12, 1992 (34 years, 8 months ago)
Expires February 13, 2033 (6 years, 10 months)
Last Updated June 26, 2024
Name Servers auth.g1-dns.com, auth.g1-dns.one
DNSSEC Enabled
Hosting
IP Address 2a02:2350:6::6514:e26d
Data source: rdap (0.1s)

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 110 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
33 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.
43 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
111 ms
Total Time Total request time from DNS lookup through full response.
111 ms

Connection waterfall

DNS Lookup 33 ms TCP Connect 17 ms TLS Handshake 43 ms Server Processing 18 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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