Website readiness profile · Snapshot 23 October 2026

agara.co.jp

agara.co.jp's public homepage, certificate and DNS checked against 31 practices and compared with 3,856 News & Media sites.

Readiness index: 50/100
Ahead of: 5.5%
Practices observed: 13/31
Popularity band: Top 50K

Measured 2026-10-23 11:45:50 UTC from one location. How we measure

Readiness by lane

Green: agara.co.jp. Thin bar: News & Media peer median.

Enable

74/100

Peers 89

Harden

45/100

Peers 56

Accelerate

38/100

Peers 68

Recover

0/100

Peers 11

Priority fixes for agara.co.jp

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

Priority 1 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
Why it matters: A sitemap helps search engines find new and updated pages, especially on large or frequently updated sites.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
87% of News & Media peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 2 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 1 hours, 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.
60% of News & Media peers do this.
Guide: Browser Caching Guide for Website Owners
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.
35% of News & Media peers do this.
Guide: HTTPS and TLS Guide for Website Owners
Priority 4 · Accelerate
Modern image formats in use
Observed: The homepage had 115 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.
44% of News & Media peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

What agara.co.jp already does well

Practices fewer than half of News & Media peers use.

Framing restrictedFraming controls present.42% of peers

What we saw

Homepage checked: https://www.agara.co.jp/
Homepage response: HTTP 200
TLS: TLSv1.3, HTTP/2
Certificate: Japan Registry Services Co., Ltd., 385-day validity, expiring 2026-12-31
DNS operators: 1 self-run or other nameserver domain
Homepage HTML: 178 KB, gzip
Images on homepage: 115 (jpg 93, png 20, gif 2)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

All 31 checks

Select a gap for the method and fix. How each check works

Not observed 18

Observed 13

HTTP requests move to HTTPS
TLS 1.3 negotiated
Certificate has more than 14 days left
Framing restricted
HTTP/2 negotiated
HTML compressed
robots.txt published
Canonical URL declared
Meta description written
Mobile viewport configured
Social preview image set
Page language declared
At most one redirect to the homepage

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Live status for this site: Status Is Down: agara.co.jp. This profile covers configuration only.

Compare with other News & Media sites

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