Website readiness profile · Snapshot 23 October 2026
nbcsports.com
nbcsports.com's public homepage, certificate and DNS checked against 31 practices and compared with 677 Sports Broadcast & Fantasy Games sites.
- Readiness index
- 61/100
- Ahead of
- 38%
- Practices observed
- 16/30
- Popularity band
- Top 5K
Sports Broadcast & Fantasy Games median 64
of measured Sports Broadcast & Fantasy Games sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: nbcsports.com. Thin bar: Sports Broadcast & Fantasy Games peer median.
Enable
92/100
Peers 82
Harden
49/100
Peers 51
Accelerate
53/100
Peers 63
Recover
0/100
Peers 16
Priority fixes for nbcsports.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
HTTP/2 negotiated
Observed: The TLS handshake selected http/1.1 instead of HTTP/2.
Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.
What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.
On Amazon CloudFront: Choose HTTP/2 (or HTTP/2 and HTTP/3) as supported versions on the distribution.
91% of Sports Broadcast & Fantasy Games peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
Priority 2 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for nbcsports.com was p=none, which asks receivers to take no action on failing mail.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
32% of Sports Broadcast & Fantasy Games peers do this.
Priority 3 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 2 external scripts without async or defer.
What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.
43% of Sports Broadcast & Fantasy Games peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 4 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from DigiCert Inc had a 198-day validity period, longer than the 100-day maximum that applies from March 2027.
What to do: Move to automated issuance and renewal now, while you still have time to test it.
70% of Sports Broadcast & Fantasy Games peers do this.
What nbcsports.com already does well
Practices fewer than half of Sports Broadcast & Fantasy Games peers use.
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.27% of peers
- Modern image formats in useWebP or AVIF images detected.35% of peers
- Reachable over IPv6IPv6 address published.43% of peers
What we saw
- Homepage checked
- https://www.nbcsports.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, http/1.1
- Certificate
- DigiCert, 198-day validity, expiring 2027-03-21
- CDN or edge
- Amazon CloudFront
- DNS operators
- Akamai Edge DNS
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=none
- Homepage HTML
- 1,029 KB, gzip
- Images on homepage
- 393 (png 770, jpg 411, svg 159)
Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.
Stack and providers
Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.
All 31 checks
Select a gap for the method and fix. How each check works
Not observed 14
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- No render-blocking scripts in <head>
- Social preview image set
- Nameservers spread across providers
Observed 16
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
Not measured 1
- Static files cached for 30 days or more
Own nbcsports.com?
Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.
Live status for this site: Status Is Down: nbcsports.com. This profile covers configuration only.