Infrastructure report cardTop 5K site

baidu.com

65 out of 10012 passed14 to improve

Checked yesterday· Grading…

HTTPS & TLSC

Certificate, protocol, redirect, HSTS72

DNSD

Name servers, DNSSEC, CAA, registration64

EmailC

SPF, DMARC, MTA-STS, DKIM73

Web & networkF

Security headers, IPv6, RPKI25

DependenciesA⁺

How much hangs on one company100

HTTPS & TLS

72/100C

TLS versionTLS 1.22/4
Negotiates TLS 1.2 at best; TLS 1.3 is faster and drops old ciphers.
Old protocolsTLS 1.10/3
Still accepts TLS 1.1, retired by browsers in 2020 and open to downgrade attacks.
HSTS2 days2/4
HSTS is on, but only for 2 days.
HTTP/2 and HTTP/3HTTP/1.10/2
Only HTTP/1.1: no multiplexing, slower pages.
HTTPS certificateGlobalSign nv-sa10/10
HTTPS with a valid certificate from GlobalSign nv-sa.
Certificate expiry1024/4
The certificate is valid for another 102 days.
Key strengthRSA 20482/2
A strong key: RSA 2048.
HTTP → HTTPS3013/3
http:// redirects straight to https://.

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 servers54/4
5 name servers for the domain.
Name servers answer5/55/5
Every name server answers for the domain, with the same version of the zone.

Email

73/100C

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).
DMARCquarantine5/7
DMARC sends mail that fakes the domain to spam (p=quarantine).
DKIMselector12/2
A DKIM key is published (selector selector1), so its mail can be signed.

Web & network

25/100F

Content Security Policy0/3
No Content Security Policy: an injected script runs with the page's full rights.
X-Content-Type-Options0/2
No X-Content-Type-Options: browsers may run an upload as a script.
Framing0/2
Any site can show its pages in a frame, which enables clickjacking.
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.
IPv60/4
www.baidu.com has no IPv6 address: IPv6-only networks reach it only through translation.
RPKIvalid4/4
The route to the website is RPKI-valid: networks can reject hijacked announcements of it.

Dependencies

100/100A⁺

DNS providersSelf-hosted5/5
DNS is served from 3 separate networks.
One company for everything5/5
The website, DNS and email do not all hang on one company.

Who runs it

Website: Beijing Baidu Netcom Science and Technology
DNS: Self-hosted
Email: Self-hosted

Routes

103.235.46.0/24AS55967RPKI valid

Name servers

dns.baidu.comSelf-hostedAS4837
ns2.baidu.comSelf-hostedAS23724
ns3.baidu.comSelf-hostedAS4837
ns4.baidu.comSelf-hostedAS4134
ns7.baidu.comSelf-hostedAS4134

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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