Website readiness profile · Snapshot 23 October 2026

tbs.co.jp

tbs.co.jp's public homepage, certificate and DNS checked against 31 practices and compared with 536 Entertainment & Video Streaming sites.

Readiness index: 40/100
Ahead of: 5%
Practices observed: 12/30
Popularity band: Top 10K

Measured 2026-10-23 11:40:38 UTC from one location. How we measure

Readiness by lane

Green: tbs.co.jp. Thin bar: Entertainment & Video Streaming peer median.

Enable

72/100

Peers 80

Harden

29/100

Peers 52

Accelerate

20/100

Peers 60

Recover

100/100

Peers 12

Priority fixes for tbs.co.jp

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

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.
89% of Entertainment & Video Streaming 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
Priority 2 · Harden
TLS 1.3 negotiated
Observed: The TLS connection negotiated TLSv1.2.
What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.
89% of Entertainment & Video Streaming peers do this.
Guide: HTTPS and TLS Guide for Website Owners
Priority 3 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
71% of Entertainment & Video Streaming peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 4 · 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.
46% of Entertainment & Video Streaming peers do this.
Guide: Browser Caching Guide for Website Owners

What tbs.co.jp already does well

Practices fewer than half of Entertainment & Video Streaming peers use.

Nameservers spread across providersNameservers spread across more than one operator.12% of peers
X-Content-Type-Options: nosniffnosniff header present.40% of peers
Framing restrictedFraming controls present.43% of peers

What we saw

Homepage checked: https://www.tbs.co.jp/
Homepage response: HTTP 200
TLS: TLSv1.2
Certificate: DigiCert, 198-day validity, expiring 2027-01-16
DNS operators: 2 self-run or other nameserver domains
DMARC policy: p=none
Homepage HTML: 24 KB, gzip
Images on homepage: 18 (png 18)

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.

DigiCert (certificate authority)

All 31 checks

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

Not observed 18

Observed 12

Certificate has more than 14 days left
X-Content-Type-Options: nosniff
Framing restricted
HTML compressed
robots.txt published
Meta description written
Mobile viewport configured
Structured data present
Social preview image set
Page language declared
At most one redirect to the homepage
Nameservers spread across providers

Not measured 1

HTTP requests move to HTTPS

Own tbs.co.jp?

Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.

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

Compare with other Entertainment & Video Streaming sites

Entertainment & Video Streaming readiness benchmark