telsu.fi

Readiness by lane

Green: telsu.fi. Thin bar: Entertainment & Video Streaming peer median.

Priority fixes for telsu.fi

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

1. 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.

   71% of Entertainment & Video Streaming 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

2. Priority 2 · Harden

   Framing restricted

   Observed: The homepage did not send frame-ancestors or X-Frame-Options, so other sites may frame it.

   What to do: Send Content-Security-Policy: frame-ancestors 'self' (or a list of trusted origins). X-Frame-Options: SAMEORIGIN covers older browsers.

   43% of Entertainment & Video Streaming peers do this.

   Guide: A Practical Website Health Check for Owners

3. Priority 3 · Harden

   X-Content-Type-Options: nosniff

   Observed: The homepage response did not include X-Content-Type-Options: nosniff.

   What to do: Send X-Content-Type-Options: nosniff on all responses and make sure each file is served with the correct Content-Type.

   40% of Entertainment & Video Streaming peers do this.

   Guide: A Practical Website Health Check for Owners

4. Priority 4 · Harden

   CAA records limit who can issue certificates

   Observed: No CAA record was found for telsu.fi, so any public certificate authority may issue for it.

   What to do: Publish CAA records naming every CA you actually use, including the CAs your CDN uses for managed certificates. Add an iodef contact if you want reports.

   9.5% of Entertainment & Video Streaming peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

What telsu.fi already does well

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

• DNSSEC signedDNSSEC delegation (DS record) present.5.6% of peers
• Content Security Policy presentContent-Security-Policy present.18% of peers
• HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.31% of peers

What we saw

Homepage checked

https://www.telsu.fi/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-16

DNS operators

1 self-run or other nameserver domain

HSTS

max-age 365 days, includeSubDomains, preload

DMARC policy

p=reject

Homepage HTML

65 KB, br

Images on homepage

52 (avif 49, svg 2, 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 Entertainment & Video Streaming sites

• angel.com83
• caracoltv.com84
• history.com85
• praoto.baby82
• sacnilk.com84

Entertainment & Video Streaming readiness benchmark