www.bt.dk speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 12:47 UTC. Grade B (82/100), with the screenshots, the timings and the fixes that matter.

https://www.bt.dk/

20 October 2026 at 12:47 UTC · Free test · report pt_781bd0d5f815
Grade
B
82/100
Performance90/100
Structure71/100

10 audit(s) passed, 6 need work

First byte (TTFB)176 msmeasured from this server
Fully loaded1.91 sfirst byte + slowest asset
Requests26document + assets
Page weight1.86 MBcompressed transfer
HTML document107.0 KBgzip
ProtocolHTTP/3cloudflare
Third-party1.76 MBother hosts

Where the first byte went

  • DNS lookup 45 ms 26%
  • TCP connect 24 ms 14%
  • Server wait 106 ms 60%

Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.

How this page compares

First bytefaster than 96% of 4,999 pages tested here176 ms against a median of 449 ms
Page weightheavier than 80% of 4,999 pages tested here1.86 MB against a median of 650.3 KB
Fully loadedslower than 53% of 4,999 pages tested here1.91 s against a median of 1.84 s
Requestssends more requests than 100% of 4,999 pages tested here26 against a median of 26

Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.

What these numbers mean

  • The server answered in 176 ms, which is fast: almost all of the wait is the page itself, not the host.
  • The page transfers 1.86 MB over 26 request(s). Images files are 94% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives gzip-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • 94% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
  • The largest element painted at 736 ms, inside the 2.5 s Google calls good.
  • The main thread was blocked for 1.26 s, so taps and scrolling wait while scripts run.

Fix first: Image delivery and format - Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.

Screenshot

What the page looks like

Loaded in headless Chromium on this server. Click an image to open it full size.

Desktop screenshot of www.bt.dk
Desktop 1366 × 768 · 85.5 KB · page is 6000 px tall
Mobile screenshot of www.bt.dk
Mobile 390 × 844 · 53.0 KB · page is 6000 px tall

Browser render

The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.

Largest contentful paint736 msgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking time1.26 slong tasks during load
First contentful paint372 msfirst content on screen
Browser page weight2.88 MB64 request(s), scripts included
Failed requests2blocked or unreachable
Largest contentful paint736 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking time1.26 s
Poorgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
1.76 MB 94%

Transfer size, compressed as sent. 26 request(s) in total, 1.86 MB across all of them.

Top issues

Image delivery and format

high impact

1 image(s) over 200 KB and 0 large image(s) still served as JPEG or PNG.

Fix: Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

Total page weight

high impact

The page transfers 1.86 MB across 26 request(s), with the document itself at 107.0 KB.

Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.

Third-party weight

medium impact

1 third-party host(s) serve 1.76 MB of this page. Each one is another DNS lookup, TLS handshake and point of failure you do not control.

Fix: Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.

HTML document size

medium impact

The document transfers 107.0 KB. A bloated document delays every other request, because nothing else can start until it is parsed.

Fix: Paginate long listings, move repeated markup into a template, and stop inlining large data URIs into the HTML.

Avoid extra redirects

medium impact

1 redirect hop(s) before the page load started, each one a full round trip before the first byte.

Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Waterfall

Slowest requests

IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164818530.webp
1.73 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164849993.webp
1.69 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164855876.webp
1.34 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164845689.webp
1.30 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164612065.webp
1.10 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164834219.webp
1.10 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164762048.webp
1.08 s
IMAGESwww.bt.dk/brands/bt/logos/BTNavigationLogo.svg
1.07 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164612065.webp
1.07 s
IMAGESakamai-aptoma-production.bmcdn.dk/users/berlingske/images/164762048.webp
1.06 s

Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party

RequestTypeStatusTimeSize
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164818530.webp?t[strip]=true&t[resize][width]=120&t[quality]=70&accessToken=fd907d1cbcc35ae2237f97567a54984aed3d905b9faacdfec1a5a92bd884ca44 3rd partyimages2001.73 s2.0 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164849993.webp?t[strip]=true&t[resize][width]=120&t[quality]=70&accessToken=53f370ace0376e307fb286d684262e71049684494ca64bcf171aea6fd58b7825 3rd partyimages2001.69 s2.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164855876.webp?t[strip]=true&t[resize][width]=120&t[quality]=70&accessToken=5ba835bce0124efc194545c445a2e0e0611810d1523e524cc600198d6cabb16d 3rd partyimages2001.34 s2.3 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164845689.webp?t[strip]=true&t[resize][width]=120&t[quality]=70&accessToken=857486f98b17134bde0bcbb9c89f5f1de2be71ed54eb4b82649ac06817a56c8a 3rd partyimages2001.30 s1.9 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164612065.webp?t[crop][x]=0&t[crop][y]=122&t[crop][width]=1920&t[crop][height]=1080&t[strip]=true&t[quality]=70&accessToken=9be5d256c4fc3909963dc416d75983350dc7ffbd4ceca30abc15cc17b45396de 3rd partyimages2001.10 s82.9 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164834219.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=47a36661965eed5edf5250e65d03426bd96114267ff33e0714a6b92e2fd23f60 3rd partyimages2001.10 s45.2 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164762048.webp?t[strip]=true&t[quality]=70&accessToken=eac23f66a28616f8f9555552f76f19d237b04604b4ebc427bde9d06761e3e74c 3rd partyimages2001.08 s139.5 KB
https://www.bt.dk/brands/bt/logos/BTNavigationLogo.svgimages2001.07 s391 B
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164612065.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=1f890778e1cd52330969366e5c34b53d8bdc34e10da3e37c04e81ba28f5c922c 3rd partyimages2001.07 s65.0 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164762048.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=fd31e7038c40972c0c70b4e7eee2dbeb39f22fb7b0113f90a01185d03efdc920 3rd partyimages2001.06 s103.3 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164833547.webp?t[strip]=true&t[quality]=70&accessToken=8cef2f0f62c213c9f7cf1bf45763bb07f1b35f61e4b48086f68a7682d01ec141 3rd partyimages2001.05 s19.9 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164855876.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=6c1047340c1546e300e1e78250ee0a392517df05f4d4fd2c21ca399be7f0db28 3rd partyimages2001.04 s77.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164839811.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=6bd2d42d83db7b13785bd75d3d286374f5efdfd764ca5d923deec1627b824666 3rd partyimages2001.04 s55.7 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164780501.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=92d7dda73bb199ac952ff9e69773d3544dab7977240b5bc0fa97e9e9459f70c1 3rd partyimages2001.03 s59.4 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164849993.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=fefc914ea43779d63f60fc27a6c995d288a3c53e211555d998b3d2af020565a1 3rd partyimages2001.03 s114.9 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164791798.webp?t[strip]=true&t[quality]=70&accessToken=d55cd86c1bb3bbc4ff6262c31f89e2331c7af64fd88bb57b1eae118845cc6e92 3rd partyimages2001.03 s283.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164791798.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=3a6d8a0e27181516e22e5e0f44dbba95e29446c4a9c7bf9f7216719fde7723d4 3rd partyimages2001.03 s143.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164828819.webp?t[strip]=true&t[quality]=70&accessToken=1ec8827d49b363520f281801fc582434a371416c6ff5131204e97e8fd0cc098c 3rd partyimages2001.03 s117.7 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164780501.webp?t[strip]=true&t[quality]=70&accessToken=09df4f65e4d1ca05e9cdffc38b393b77b516efdd0dc45b60fb5288bd614cb9b5 3rd partyimages2001.03 s112.0 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164818530.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=3a7d2c9b78506882d7f1acdca476660be017c26c93f7cd3e6500808f609ee9bc 3rd partyimages2001.03 s110.4 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164839811.webp?t[strip]=true&t[quality]=70&accessToken=7be9ba267992572adb5aef10310ebf423bc50f94fe6a944e775d971c42e5116b 3rd partyimages2001.03 s86.8 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164828819.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=6139d2943fab4e1f76a425a6712234380a87962e88a3e4d5d99cd60ca3592fd4 3rd partyimages2001.03 s79.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164845689.webp?t[strip]=true&t[resize][width]=1440&t[quality]=70&accessToken=6abdfd25020413e16eb6b148f4b1ad3e9cba917eff0743c4cff1969653239de7 3rd partyimages2001.03 s78.5 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164834219.webp?t[strip]=true&t[resize][width]=120&t[quality]=70&accessToken=6db7b08189b7846b96164dd866813b407a40a9956359f81a1419a6edf25a5235 3rd partyimages2001.03 s1.6 KB
https://akamai-aptoma-production.bmcdn.dk/users/berlingske/images/164837694.webp?t[strip]=true&t[quality]=70&accessToken=ca39c9a722fb0d7bfdbfb775632b5a3d6398af0b8ff02458c301f333715451d6 3rd partyimages2001.03 s11.3 KB
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