telenor.se

Readiness by lane

Green: telenor.se. Thin bar: Telecommunications & Internet peer median.

Priority fixes for telenor.se

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

1. Priority 1 · Accelerate

   HTML compressed

   Observed: The homepage HTML (58 KB) was delivered without gzip, Brotli or zstd compression.

   Why it matters: Compression usually shrinks HTML several times over, so the first bytes of the page arrive sooner on slow connections.

   What to do: Enable Brotli or gzip for text responses (HTML, CSS, JavaScript, JSON, SVG) at the CDN or origin.

   90% of Telecommunications & Internet peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: How to Set a Website Performance Budget That Teams Can Keep

2. Priority 2 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 186 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.

   54% of Telecommunications & Internet 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.

   41% of Telecommunications & Internet peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Enable

   Social preview image set

   Observed: The homepage had no og:image, so shared links may show without a preview image.

   What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.

   59% of Telecommunications & Internet peers do this.

   Guide: SEO Checklist for a New Website

What telenor.se already does well

Practices fewer than half of Telecommunications & Internet peers use.

• security.txt publishedsecurity.txt with a contact found.13% of peers
• Nameservers spread across providersNameservers spread across more than one operator.16% of peers
• Referrer-Policy setReferrer-Policy present.33% of peers

What we saw

Homepage checked

https://www.telenor.se/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

GlobalSign, 199-day validity, expiring 2027-01-21

DNS operators

2 self-run or other nameserver domains

HSTS

max-age 186 days

DMARC policy

p=quarantine

Homepage HTML

58 KB, uncompressed

Images on homepage

0

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 Telecommunications & Internet sites

• jcom.co.jp71
• mci.ir71
• orange.be71
• teltarif.de71
• tp-link.com71

Telecommunications & Internet readiness benchmark