jibunbank.co.jp

Readiness by lane

Green: jibunbank.co.jp. Thin bar: Banking & Finance peer median.

Priority fixes for jibunbank.co.jp

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.

   73% of Banking & Finance 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 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 0 days, below the one-year benchmark.

   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.

   62% of Banking & Finance peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

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.

   43% of Banking & Finance peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Accelerate

   Modern image formats in use

   Observed: The homepage had 47 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.

   37% of Banking & Finance peers do this.

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

What jibunbank.co.jp already does well

Practices fewer than half of Banking & Finance peers use.

• Nameservers spread across providersNameservers spread across more than one operator.21% of peers

What we saw

Homepage checked

https://www.jibunbank.co.jp/

Homepage response

HTTP 200

TLS

TLSv1.3, http/1.1

Certificate

DigiCert, 198-day validity, expiring 2027-03-07

DNS operators

3 self-run or other nameserver domains

HSTS

max-age 0 days

DMARC policy

p=reject

Homepage HTML

103 KB, gzip

Images on homepage

47 (png 37, gif 6, svg 4)

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 Banking & Finance sites

• bcb.gov.br54
• belarusbank.by54
• finchoice.mobi54
• nikomu.com54
• rate.am54

Banking & Finance readiness benchmark