klerk.ru

Readiness by lane

Green: klerk.ru. Thin bar: Accounting & Tax peer median.

Priority fixes for klerk.ru

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

1. Priority 1 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   Why it matters: TLS 1.3 removes legacy cipher suites and completes the handshake in fewer round trips, so it is both safer and faster for new connections.

   What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.

   79% of Accounting & Tax peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: HTTPS and TLS 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.

   40% of Accounting & Tax 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.

   67% of Accounting & Tax peers do this.

   Guide: A Practical Website Health Check for Owners

4. Priority 4 · Harden

   X-Content-Type-Options: nosniff

   Observed: The homepage response did not include X-Content-Type-Options: nosniff.

   What to do: Send X-Content-Type-Options: nosniff on all responses and make sure each file is served with the correct Content-Type.

   59% of Accounting & Tax peers do this.

   Guide: A Practical Website Health Check for Owners

What klerk.ru already does well

Practices fewer than half of Accounting & Tax peers use.

• No render-blocking scripts in <head>Head scripts load without blocking.35% of peers
• Modern image formats in useWebP or AVIF images detected.48% of peers
• Static files cached for 30 days or moreLong-lived caching on static files.49% of peers

What we saw

Homepage checked

https://www.klerk.ru/

Homepage response

HTTP 200

TLS

TLSv1.2, HTTP/2

Certificate

GlobalSign, 396-day validity, expiring 2026-11-23

Platform or framework

Nuxt

DNS operators

1 self-run or other nameserver domain

DMARC policy

p=reject

Homepage HTML

560 KB, br

Images on homepage

41 (webp 95, 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 Accounting & Tax sites

• ifirma.pl63
• meudanfe.com.br67
• szamlazz.hu71
• tripletex.no69
• wfirma.pl68

Accounting & Tax readiness benchmark