thesalarycalculator.co.uk

Readiness by lane

Green: thesalarycalculator.co.uk. Thin bar: Accounting & Tax peer median.

Priority fixes for thesalarycalculator.co.uk

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

1. Priority 1 · Accelerate

   HTTP/2 negotiated

   Observed: The TLS handshake selected http/1.1 instead of HTTP/2.

   Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.

   What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.

   81% of Accounting & Tax peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: CDN Guide for Website Owners

2. Priority 2 · Enable

   robots.txt published

   Observed: No robots.txt file was returned at the site root.

   What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.

   79% of Accounting & Tax peers do this.

   Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes

3. Priority 3 · 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

4. Priority 4 · Enable

   Page language declared

   Observed: The homepage <html> element had no lang attribute.

   What to do: Set lang on the html element (for example lang="en") and on any sections in another language.

   92% of Accounting & Tax peers do this.

   Guide: Website Accessibility Checklist for Owners

What thesalarycalculator.co.uk 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
• Certificate lifetime of 100 days or lessShort-lived 89-day certificate from Let's Encrypt, already inside the 2027 limit.38% 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.thesalarycalculator.co.uk/

Homepage response

HTTP 200

TLS

TLSv1.3, http/1.1

Certificate

Let's Encrypt, 89-day validity, expiring 2027-01-04

DNS operators

1 self-run or other nameserver domain

DMARC policy

p=quarantine

Homepage HTML

34 KB, gzip

Images on homepage

1 (png 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 Accounting & Tax sites

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• masothue.com60
• moloni.pt61
• mybillbook.in61
• rd.go.th61

Accounting & Tax readiness benchmark