yopmail.com

Readiness by lane

Green: yopmail.com. Thin bar: Webmail & Message Inboxes peer median.

Priority fixes for yopmail.com

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Accelerate

   Modern image formats in use

   Observed: The homepage had 12 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 Webmail & Message Inboxes 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

2. Priority 2 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for 1 days, short of the 30-day benchmark.

   What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.

   28% of Webmail & Message Inboxes peers do this.

   Guide: Browser Caching Guide for Website Owners

3. Priority 3 · 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.

   33% of Webmail & Message Inboxes peers do this.

   Guide: XML Sitemap Guide: Include Only URLs You Stand Behind

4. Priority 4 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 1 external script 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.

   30% of Webmail & Message Inboxes peers do this.

   Guide: Control Third-Party Scripts Before They Control Your Page

What yopmail.com already does well

Practices fewer than half of Webmail & Message Inboxes peers use.

• Social preview image setog:image present.36% of peers
• Certificate lifetime of 100 days or lessShort-lived 89-day certificate from Let's Encrypt, already inside the 2027 limit.38% of peers

What we saw

Homepage checked

https://yopmail.com/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2027-01-03

DNS operators

OVHcloud DNS

HSTS

max-age 365 days, includeSubDomains, preload

DMARC policy

p=quarantine

Homepage HTML

17 KB, gzip

Images on homepage

12 (svg 9, png 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

Compare with other Webmail & Message Inboxes sites

• emailondeck.com64
• laposte.net68
• libero.it67
• pec.it61
• posteo.de66

Webmail & Message Inboxes readiness benchmark