gitlab.com
HTTPS & TLS
100/100A+- HTTPS certificateGoogle Trust Services10/10
HTTPS with a valid certificate from Google Trust Services.
- Certificate expiry884/4
The certificate is valid for another 88 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 strengthECDSA P-2562/2
A strong key: ECDSA P-256.
- 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
79/100B- DNSSEC0/3
Not signed with DNSSEC: a forged DNS answer for the domain cannot be told from the real one.
- Name servers24/4
2 name servers for the domain.
- Name servers answer2/25/5
Every name server answers for the domain, with the same version of the zone.
- CAA recordsamazontrust.com, awstrust.com, comodoca.com, digicert.com, globalsign.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com, amazon.com, amazonaws.com2/2
CAA records name the authorities allowed to issue its certificates.
- SPF131/5
SPF needs 13 DNS lookups (at most 10 are allowed), so it fails at receivers.
Flatten includes you no longer use, or replace them with ip4:/ip6: ranges.
- 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.
- DMARCreject7/7
DMARC tells receivers to reject mail that fakes the domain (p=reject).
- DKIMgoogle2/2
A DKIM key is published (selector google), so its mail can be signed.
Web & network
31/100F- 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.
- RPKIunknown1/4
The route to the website is not covered by RPKI, so a hijack of it cannot be told apart.
- IPv64/4
about.gitlab.com is reachable over IPv6 as well as IPv4.
Dependencies
60/100D- DNS providersCloudflare3/5
All DNS is with one provider (Cloudflare): an outage there takes the domain offline, as Dyn's did in 2016.
- One company for everythingCloudflare: website, DNS3/5
Cloudflare runs both the website and the DNS: one outage there takes both down.
Who runs it
- Website
- Cloudflare
- DNS
- Cloudflare
- Google Workspace
Routes
- 8.47.69.0/24AS13335RPKI unknown
- 2a06:98c1:3123::/48AS13335RPKI valid
Name servers
- diva.ns.cloudflare.comCloudflareAS13335
- jermaine.ns.cloudflare.comCloudflareAS13335
README badge
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What is graded
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.
At least two name servers that all answer and agree, DNSSEC, CAA records, and a registration that is not about to expire.
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.
Content Security Policy, nosniff, framing protection, Referrer- and Permissions-Policy, IPv6, and an RPKI-valid route (invalid means at most C).
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