labyrinthos.co

Readiness by lane

Green: labyrinthos.co. Thin bar: Education & Online Learning peer median.

Priority fixes for labyrinthos.co

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

1. Priority 1 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 91 days, below the one-year benchmark.

   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 Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.

   34% of Education & Online Learning peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Accelerate

   Modern image formats in use

   Observed: The homepage had 37 images and none used WebP or AVIF.

   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.

   On Cloudflare: Cloudflare Polish can convert images to WebP.

   32% of Education & Online Learning peers do this.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

3. 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.

   42% of Education & Online Learning peers do this.

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

4. Priority 4 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 37 images and none used loading="lazy".

   What to do: Add loading="lazy" to images below the fold. Do not lazy-load the main hero image, because that delays the largest visible element.

   52% of Education & Online Learning peers do this.

   Guide: Lazy Loading Without Broken Pages

What labyrinthos.co already does well

Practices fewer than half of Education & Online Learning peers use.

• Content Security Policy presentContent-Security-Policy present.25% of peers
• HTTP/3 advertisedHTTP/3 advertised.25% of peers
• DMARC policy enforces quarantine or rejectDMARC policy p=quarantine.36% of peers

What we saw

Homepage checked

https://labyrinthos.co/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Google Trust Services, 89-day validity, expiring 2026-12-26

CDN or edge

Cloudflare, Shopify

Platform or framework

Shopify

DNS operators

GoDaddy DNS

HSTS

max-age 91 days

DMARC policy

p=quarantine

Homepage HTML

204 KB, br

Images on homepage

37 (svg 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 Education & Online Learning sites

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Education & Online Learning readiness benchmark