Website readiness profile · Snapshot 23 October 2026
mailsuite.com
mailsuite.com's public homepage, certificate and DNS checked against 31 practices and compared with 87 SEO & Email Marketing sites.
- Readiness index
- 79/100
- Ahead of
- 79%
- Practices observed
- 21/30
- 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: mailsuite.com. Thin bar: SEO & Email Marketing peer median.
Enable
87/100
Peers 77
Harden
82/100
Peers 55
Accelerate
71/100
Peers 66
Recover
0/100
Peers 3
Priority fixes for mailsuite.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 25 images and none used WebP or AVIF.
Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.
What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.
41% of SEO & Email Marketing peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
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 · 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.
41% of SEO & Email Marketing peers do this.
Priority 4 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
49% of SEO & Email Marketing peers do this.
What mailsuite.com 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, amazonaws.com, amazontrust.com and others.20% of peers
- Content Security Policy presentContent-Security-Policy present.27% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age.36% of peers
What we saw
- Homepage checked
- https://mailsuite.com/
- Homepage response
- HTTP 200, after 1 redirect
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-04-05
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days
- DMARC policy
- p=quarantine
- Homepage HTML
- 139 KB, gzip
- Images on homepage
- 25 (png 21, svg 2, jpg 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 9
Observed 21
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- 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
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- 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
- Structured data present
- Page language declared
- At most one redirect to the homepage
Not measured 1
- Static files cached for 30 days or more
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Live status for this site: Status Is Down: mailsuite.com. This profile covers configuration only.