pidruchnyk.com.ua

Readiness by lane

Green: pidruchnyk.com.ua. Thin bar: Literary & Knowledge peer median.

Priority fixes for pidruchnyk.com.ua

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

1. Priority 1 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 1 external script without async or defer.

   Why it matters: A plain <script src> in the head stops the browser from showing anything until that file has downloaded and run.

   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.

   48% of Literary & Knowledge peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.

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

2. Priority 2 · Harden

   DMARC policy enforces quarantine or reject

   Observed: No DMARC record was found at _dmarc.pidruchnyk.com.ua.

   What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.

   22% of Literary & Knowledge peers do this.

   Guide: A Practical Website Health Check for Owners

3. Priority 3 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 20 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.

   48% of Literary & Knowledge peers do this.

   Guide: Lazy Loading Without Broken Pages

4. 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.

   54% of Literary & Knowledge peers do this.

   Guide: SEO Checklist for a New Website

What pidruchnyk.com.ua already does well

Practices fewer than half of Literary & Knowledge peers use.

• HSTS kept for at least a yearHSTS with a 365-day max-age.28% of peers
• Modern image formats in useWebP or AVIF images detected.31% of peers
• Framing restrictedFraming controls present.37% of peers

What we saw

Homepage checked

https://pidruchnyk.com.ua/

Homepage response

HTTP 200, after 1 redirect

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-28

CDN or edge

Cloudflare

DNS operators

Cloudflare

HSTS

max-age 365 days

Homepage HTML

37 KB, br

Images on homepage

20 (webp 17, jpg 3)

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 Literary & Knowledge sites

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• mvlempyr.io71
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• tekstowo.pl71
• up-manga.com71

Literary & Knowledge readiness benchmark