thsrc.com.tw

Readiness by lane

Green: thsrc.com.tw. Thin bar: Trains & Public Transport peer median.

Priority fixes for thsrc.com.tw

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.

   77% of Trains & Public Transport 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.

   81% of Trains & Public Transport 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.

   38% of Trains & Public Transport peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 42 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.

   43% of Trains & Public Transport peers do this.

   Guide: Lazy Loading Without Broken Pages

What thsrc.com.tw already does well

Practices fewer than half of Trains & Public Transport peers use.

• Modern image formats in useWebP or AVIF images detected.28% of peers
• Referrer-Policy setReferrer-Policy present.29% of peers
• Content Security Policy presentContent-Security-Policy present.34% of peers

What we saw

Homepage checked

https://www.thsrc.com.tw/

Homepage response

HTTP 200

TLS

TLSv1.3, http/1.1

Certificate

TAIWAN-CA, 394-day validity, expiring 2026-11-27

DNS operators

Akamai Edge DNS

HSTS

max-age 365 days, includeSubDomains

DMARC policy

p=quarantine

Homepage HTML

228 KB, br

Images on homepage

42 (svg 29, webp 6, jpg 5, 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 Trains & Public Transport sites

• bvg.de68
• erail.in68
• europodroze.pl67
• garesetconnexions.sncf66
• nationalexpress.com68

Trains & Public Transport readiness benchmark