Infrastructure report cardTop 5K site

dw.com

84 out of 10018 passed8 to improve

Checked yesterday· Grading…

HTTPS & TLSA⁺

Certificate, protocol, redirect, HSTS100

DNSD

Name servers, DNSSEC, CAA, registration64

EmailA

SPF, DMARC, MTA-STS, DKIM85

Web & networkC

Security headers, IPv6, RPKI72

DependenciesA⁺

How much hangs on one company100

HTTPS & TLS

100/100A⁺

HTTPS certificateDigiCert Inc10/10
HTTPS with a valid certificate from DigiCert Inc.
Certificate expiry1704/4
The certificate is valid for another 170 days.
TLS versionTLS 1.34/4
Negotiates TLS 1.3, the current protocol: faster handshakes, forward secrecy always.
Old protocols3/3
Refuses the retired TLS 1.0 and 1.1.
Key strengthRSA 20482/2
A strong key: RSA 2048.
HTTP → HTTPS3013/3
http:// redirects straight to https://.
HSTS1 year4/4
HSTS tells browsers to use HTTPS only, for 1 year.
HTTP/2 and HTTP/3HTTP/32/2
HTTP/2 and HTTP/3.

DNS

64/100D

DNSSEC0/3
Not signed with DNSSEC: a forged DNS answer for the domain cannot be told from the real one.
CAA records0/2
No CAA records: any certificate authority may issue certificates for the domain.
Name servers44/4
4 name servers for the domain.
Name servers answer4/45/5
Every name server answers for the domain, with the same version of the zone.

Email

85/100A

MTA-STS0/2
No MTA-STS: mail to the domain can be read in transit by stripping its encryption.
TLS reporting0/0.5
No TLS reporting: failed encrypted deliveries go unnoticed.
SPF-all5/5
SPF lists the servers allowed to send its mail and rejects the rest (-all).
DMARCreject7/7
DMARC tells receivers to reject mail that fakes the domain (p=reject).
DKIMselector12/2
A DKIM key is published (selector selector1), so its mail can be signed.

Web & network

72/100C

Content Security Policypartial1.5/3
A Content Security Policy is sent, but it does not limit scripts.
X-Content-Type-Options0/2
No X-Content-Type-Options: browsers may run an upload as a script.
Referrer-Policy0/0.5
No Referrer-Policy of its own (browsers' default applies).
Permissions-Policy0/0.5
No Permissions-Policy: embedded content may ask for camera, microphone or location.
Framing2/2
Other sites cannot frame its pages (clickjacking protection).
IPv64/4
www.dw.com is reachable over IPv6 as well as IPv4.
RPKIvalid4/4
The route to the website is RPKI-valid: networks can reject hijacked announcements of it.

Dependencies

100/100A⁺

DNS providersnetcologne.de, dwelle.de5/5
DNS is served by 2 providers: one can fail without taking the domain offline.
One company for everything5/5
The website, DNS and email do not all hang on one company.

Who runs it

Website: Akamai
DNS: netcologne.dedwelle.de
Email: Microsoft 365

Routes

184.51.224.0/20AS16625RPKI valid
2a02:26f0:3780::/48AS20940RPKI valid

Name servers

dns3.netcologne.denetcologne.deAS8422
dns4.netcologne.denetcologne.deAS8422
dns5.netcologne.denetcologne.deAS5520
voltaire.dwelle.dedwelle.deAS200777

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What is graded

HTTPS & TLS · 25%

A valid certificate (an invalid one means F), its expiry against its lifetime, TLS 1.3, no TLS 1.0/1.1 (else at most B), http:// sent straight to https://, HSTS, HTTP/2.

DNS · 20%

At least two name servers that all answer and agree, DNSSEC, CAA records, and a registration that is not about to expire.

Email · 20%

SPF, a DMARC policy that rejects forgeries (none means at most B), MTA-STS and TLS reporting for domains that take mail, DKIM at common selectors.

Web & network · 20%

Content Security Policy, nosniff, framing protection, Referrer- and Permissions-Policy, IPv6, and an RPKI-valid route (invalid means at most C).

Dependencies · 15%

DNS from more than one provider, and the website, DNS and email not all with one company.

A+ 95–100 · A 85–94 · B 75–84 · C 65–74 · D 50–64 · F below 50