weather.com
HTTPS & TLS
100/100A+- HTTPS certificateDigiCert Inc10/10
HTTPS with a valid certificate from DigiCert Inc.
- Certificate expiry844/4
The certificate is valid for another 84 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://.
- HSTS2 years · preload4/4
HSTS tells browsers to use HTTPS only, for 2 years.
- HTTP/2 and HTTP/3HTTP/22/2
HTTP/2.
DNS
79/100B- DNSSEC0/3
Not signed with DNSSEC: a forged DNS answer for the domain cannot be told from the real one.
- Name servers64/4
6 name servers for the domain.
- Name servers answer6/65/5
Every name server answers for the domain, with the same version of the zone.
- CAA recordssectigo.com, letsencrypt.org, amazon.com, globalsign.com, digicert.com, pki.goog2/2
CAA records name the authorities allowed to issue its certificates.
- 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~all4/5
SPF lists the servers allowed to send its mail and marks the rest as suspicious (~all).
- DMARCquarantine5/7
DMARC sends mail that fakes the domain to spam (p=quarantine).
- DKIMgoogle2/2
A DKIM key is published (selector google), so its mail can be signed.
Web & network
50/100D- 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.
- IPv64/4
weather.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
60/100D- DNS providersAkamai Edge DNS3/5
All DNS is with one provider (Akamai Edge DNS): an outage there takes the domain offline, as Dyn's did in 2016.
- One company for everythingAkamai: website, DNS3/5
Akamai runs both the website and the DNS: one outage there takes both down.
Who runs it
- Website
- Akamai
- Google Workspace
Routes
- 23.52.16.0/20AS16625RPKI valid
- 2a02:26f0:3780::/48AS20940RPKI valid
Name servers
- a1-70.akam.netAkamai Edge DNSAS21342
- a10-65.akam.netAkamai Edge DNSAS21342
- a11-66.akam.netAkamai Edge DNSAS21342
- a13-67.akam.netAkamai Edge DNSAS21342
- a14-64.akam.netAkamai Edge DNSAS21342
- a24-65.akam.netAkamai Edge DNSAS21342
README badge
Show the grade in your README or docs; it updates when the domain is graded again.
[](https://skycisa.com/grade/weather.com)Compare with…
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