Website readiness profile · Snapshot 23 October 2026
systeme.io
systeme.io's public homepage, certificate and DNS checked against 31 practices and compared with 87 SEO & Email Marketing sites.
- Readiness index
- 71/100
- Ahead of
- 66%
- Practices observed
- 18/30
- Popularity band
- Top 50K
SEO & Email Marketing median 62
of measured SEO & Email Marketing sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: systeme.io. Thin bar: SEO & Email Marketing peer median.
Enable
79/100
Peers 77
Harden
58/100
Peers 55
Accelerate
88/100
Peers 66
Recover
0/100
Peers 3
Priority fixes for systeme.io
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.
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.
On Amazon CloudFront: Attach a response headers policy with Strict-Transport-Security to each distribution.
36% of SEO & Email Marketing peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from Amazon had a 197-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.
85% of SEO & Email Marketing peers do this.
Priority 3 · Harden
Framing restricted
Observed: The homepage did not send frame-ancestors or X-Frame-Options, so other sites may frame it.
What to do: Send Content-Security-Policy: frame-ancestors 'self' (or a list of trusted origins). X-Frame-Options: SAMEORIGIN covers older browsers.
On Amazon CloudFront: Set frame options in a response headers policy.
48% of SEO & Email Marketing peers do this.
Priority 4 · Accelerate
HTTP/3 advertised
Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.
What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.
On Amazon CloudFront: Select HTTP/3 in the distribution's supported HTTP versions.
41% of SEO & Email Marketing peers do this.
What systeme.io already does well
Practices fewer than half of SEO & Email Marketing peers use.
- CAA records limit who can issue certificatesCAA limits issuance to amazon.com, letsencrypt.org.20% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=reject.37% of peers
- X-Content-Type-Options: nosniffnosniff header present.41% of peers
What we saw
- Homepage checked
- https://systeme.io/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-03-10
- CDN or edge
- Amazon CloudFront
- DNS operators
- Amazon Route 53
- DMARC policy
- p=reject
- Homepage HTML
- 271 KB, gzip
- Images on homepage
- 17 (svg 9, avif 5, webp 2)
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 12
Observed 18
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- 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
- HTTP/2 negotiated
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Not measured 1
- Static files cached for 30 days or more
Own systeme.io?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: systeme.io. This profile covers configuration only.