3ddd.ru

Readiness by lane

Green: 3ddd.ru. Thin bar: Design & Content Creation peer median.

Priority fixes for 3ddd.ru

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

1. Priority 1 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.

   Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.

   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.

   57% of Design & Content Creation peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: Browser Caching Guide for Website Owners

2. Priority 2 · 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.

   37% of Design & Content Creation peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

3. 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.

   48% of Design & Content Creation peers do this.

   Guide: A Practical Website Health Check for Owners

4. 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.

   43% of Design & Content Creation peers do this.

   Guide: CDN Guide for Website Owners

What 3ddd.ru already does well

Practices fewer than half of Design & Content Creation peers use.

• CAA records limit who can issue certificatesCAA limits issuance to letsencrypt.org.17% of peers
• DMARC policy enforces quarantine or rejectDMARC policy p=reject.41% of peers
• No render-blocking scripts in <head>Head scripts load without blocking.49% of peers

What we saw

Homepage checked

https://3ddd.ru/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-18

Platform or framework

Angular

DNS operators

1 self-run or other nameserver domain

DMARC policy

p=reject

Homepage HTML

414 KB, gzip

Images on homepage

54 (jpg 25, svg 16, png 8, webp 1)

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 Design & Content Creation sites

• canva.in72
• facy.ai72
• planner5d.com73
• riverside.com73
• snapfish.com73

Design & Content Creation readiness benchmark