Website readiness profile · Snapshot 23 October 2026
gradescope.com
gradescope.com's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 48/100
- Ahead of
- 19%
- Practices observed
- 14/31
- Popularity band
- Top 5K
Education & Online Learning median 61
of measured Education & Online Learning sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: gradescope.com. Thin bar: Education & Online Learning peer median.
Enable
64/100
Peers 75
Harden
58/100
Peers 54
Accelerate
18/100
Peers 57
Recover
0/100
Peers 13
Priority fixes for gradescope.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
HTML compressed
Observed: The homepage HTML (206 KB) was delivered without gzip, Brotli or zstd compression.
Why it matters: Compression usually shrinks HTML several times over, so the first bytes of the page arrive sooner on slow connections.
What to do: Enable Brotli or gzip for text responses (HTML, CSS, JavaScript, JSON, SVG) at the CDN or origin.
90% of Education & Online Learning peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Guide: How to Set a Website Performance Budget That Teams Can Keep
Priority 2 · Harden
TLS 1.3 negotiated
Observed: The TLS connection negotiated TLSv1.2.
What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.
86% of Education & Online Learning peers do this.
Priority 3 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.
34% of Education & Online Learning peers do this.
Priority 4 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
65% of Education & Online Learning peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
What gradescope.com already does well
Practices fewer than half of Education & Online Learning peers use.
- CAA records limit who can issue certificatesCAA limits issuance to amazon.com, letsencrypt.org.13% of peers
- Referrer-Policy setReferrer-Policy present.27% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=quarantine.36% of peers
What we saw
- Homepage checked
- https://www.gradescope.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.2, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-01-28
- DNS operators
- Amazon Route 53
- DMARC policy
- p=quarantine
- Homepage HTML
- 206 KB, uncompressed
- Images on homepage
- 46 (jpg 35, png 6, svg 5)
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 17
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate lifetime of 100 days or less
- DNSSEC signed
- security.txt published
- Content Security Policy present
- HTTP/3 advertised
- HTML compressed
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Nameservers spread across providers
Observed 14
- HTTP requests move to HTTPS
- Certificate has more than 14 days left
- CAA records limit who can issue certificates
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- robots.txt published
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own gradescope.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: gradescope.com. This profile covers configuration only.