henrri.net

Readiness by lane

Green: henrri.net. Thin bar: Accounting & Tax peer median.

Priority fixes for henrri.net

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

1. Priority 1 · Harden

   DMARC policy enforces quarantine or reject

   Observed: The DMARC policy for henrri.net was p=none, which asks receivers to take no action on failing mail.

   Why it matters: An enforcing DMARC policy helps receiving mail systems reject email that falsely claims to come from your domain, a common route for phishing your customers.

   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.

   58% of Accounting & Tax peers do this. Limit: Read from public DNS at the time of the check; records may have changed since.

   Guide: A Practical Website Health Check for 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 · 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.

   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.

   49% of Accounting & Tax peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Accelerate

   Modern image formats in use

   Observed: The homepage had 6 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.

   48% of Accounting & Tax peers do this.

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

What henrri.net already does well

Practices fewer than half of Accounting & Tax peers use.

• Content Security Policy presentContent-Security-Policy present.28% of peers
• HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.40% of peers
• Referrer-Policy setReferrer-Policy present.42% of peers

What we saw

Homepage checked

https://henrri.net/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Sectigo, 198-day validity, expiring 2027-04-25

DNS operators

OVHcloud DNS

HSTS

max-age 365 days, includeSubDomains

DMARC policy

p=none

Homepage HTML

20 KB, br

Images on homepage

6 (png 5, svg 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

• accaglobal.com55
• brutto-netto-rechner.info54
• didox.uz51
• icmai.in52
• oblio.eu55

Accounting & Tax readiness benchmark