developer.adobe.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 12:34 UTC. Grade C (79/100), with the screenshots, the timings and the fixes that matter.

https://developer.adobe.com/

20 October 2026 at 12:34 UTC · Free test · report pt_dee90f01e016
Grade
C
79/100
Performance78/100
Structure80/100

12 audit(s) passed, 4 need work

First byte (TTFB)764 msmeasured from this server
Fully loaded2.39 sfirst byte + slowest asset
Requests26document + assets
Page weight1.31 MBcompressed transfer
HTML document2.6 KBgzip
ProtocolHTTP/3server not sent

Where the first byte went

  • DNS lookup 62 ms 8%
  • TCP connect 31 ms 4%
  • Server wait 671 ms 88%

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 byteslower than 74% of 4,999 pages tested here764 ms against a median of 448 ms
Page weightheavier than 70% of 4,999 pages tested here1.31 MB against a median of 650.3 KB
Fully loadedslower than 71% of 4,999 pages tested here2.39 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 first byte took 764 ms. Everything else waits for that number, so the server is where to start: caching, a slow query, or an overloaded host.
  • The page transfers 1.31 MB over 26 request(s). Images files are 99% 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.
  • The largest element painted at 876 ms, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.003), so nothing jumps under the reader's cursor.

Fix first: Server response time (TTFB) - Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.

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.

Mobile screenshot of developer.adobe.com
Mobile 390 × 844 · 64.9 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 paint876 msgood is under 2.5 s
Cumulative layout shift0.003under 0.1 is stable
Total blocking timenone over 50 mslong tasks during load
First contentful paint876 msfirst content on screen
Browser page weight885.5 KB80 request(s), scripts included
Failed requests2blocked or unreachable
Largest contentful paint876 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.003
Goodgood under 0.1, poor over 0.25
Total blocking timenone over 50 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 24 requests
1.29 MB 99%
Javascript 1 request
10.0 KB 1%

Transfer size, compressed as sent. 26 request(s) in total, 1.31 MB across all of them.

Top issues

Server response time (TTFB)

high impact

The first byte arrived after 764 ms. Of that, 671 ms was the server thinking and 93 ms was connection setup. A first byte under 400 ms is what a visitor feels as instant.

Fix: Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.

Image delivery and format

high impact

2 image(s) over 200 KB and 3 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

medium impact

The page transfers 1.31 MB across 26 request(s), with the document itself at 2.6 KB.

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

Avoid extra redirects

medium impact

2 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

IMAGESdeveloper.adobe.com/media_1a8a4b47d44f076842cab16735aaac48…
1.63 s
IMAGESdeveloper.adobe.com/media_184c4c2a08b336a4011361b934ee5963…
1.49 s
IMAGESdeveloper.adobe.com/media_159262cd38e0154137979608bcc983c1…
1.29 s
IMAGESdeveloper.adobe.com/media_10218d627b06cd420b4f6238ebadf380…
1.19 s
IMAGESdeveloper.adobe.com/media_10218d627b06cd420b4f6238ebadf380…
1.10 s
IMAGESdeveloper.adobe.com/media_10218d627b06cd420b4f6238ebadf380…
1.10 s
IMAGESdeveloper.adobe.com/media_1dc0445467ad588f4da807ca8b979757…
1.09 s
IMAGESdeveloper.adobe.com/media_159262cd38e0154137979608bcc983c1…
1.09 s
IMAGESdeveloper.adobe.com/media_10218d627b06cd420b4f6238ebadf380…
1.08 s
IMAGESdeveloper.adobe.com/media_184c4c2a08b336a4011361b934ee5963…
1.07 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://developer.adobe.com/media_1a8a4b47d44f076842cab16735aaac4854df36e0a.png?width=2000&format=png&optimize=mediumimages2001.63 s1.1 KB
https://developer.adobe.com/media_184c4c2a08b336a4011361b934ee59632b5db6c5d.png?width=2000&format=webply&optimize=mediumimages2001.49 s644 B
https://developer.adobe.com/media_159262cd38e0154137979608bcc983c11f3744359.png?width=750&format=png&optimize=mediumimages2001.29 s22.4 KB
https://developer.adobe.com/media_10218d627b06cd420b4f6238ebadf380baff945d5.png?width=2000&format=png&optimize=mediumimages2001.19 s744.6 KB
https://developer.adobe.com/media_10218d627b06cd420b4f6238ebadf380baff945d5.png?width=2000&format=webply&optimize=mediumimages2001.10 s12.3 KB
https://developer.adobe.com/media_10218d627b06cd420b4f6238ebadf380baff945d5.png?width=750&format=png&optimize=mediumimages2001.10 s153.0 KB
https://developer.adobe.com/media_1dc0445467ad588f4da807ca8b979757f5c45e4cc.png?width=2000&format=png&optimize=mediumimages2001.09 s598 B
https://developer.adobe.com/media_159262cd38e0154137979608bcc983c11f3744359.png?width=2000&format=png&optimize=mediumimages2001.09 s10.4 KB
https://developer.adobe.com/media_10218d627b06cd420b4f6238ebadf380baff945d5.png?width=750&format=webply&optimize=mediumimages2001.08 s5.6 KB
https://developer.adobe.com/media_184c4c2a08b336a4011361b934ee59632b5db6c5d.png?width=750&format=webply&optimize=mediumimages2001.07 s644 B
https://developer.adobe.com/media_1dc0445467ad588f4da807ca8b979757f5c45e4cc.png?width=750&format=png&optimize=mediumimages2001.04 s598 B
https://developer.adobe.com/media_159262cd38e0154137979608bcc983c11f3744359.png?width=2000&format=webply&optimize=mediumimages2001.03 s7.8 KB
https://developer.adobe.com/media_159262cd38e0154137979608bcc983c11f3744359.png?width=750&format=webply&optimize=mediumimages2001.02 s5.0 KB
https://developer.adobe.com/media_14c79b15784b2080cb54f0f3a712380bd0e939795.png?width=750&format=png&optimize=mediumimages2001.02 s75.2 KB
https://developer.adobe.com/media_1dc0445467ad588f4da807ca8b979757f5c45e4cc.png?width=2000&format=webply&optimize=mediumimages2001.02 s650 B
https://developer.adobe.com/media_1dc0445467ad588f4da807ca8b979757f5c45e4cc.png?width=750&format=webply&optimize=mediumimages2001.02 s650 B
https://developer.adobe.com/media_18063291ecd1a37fd8ea874a5df91a62c86609eea.png?width=750&format=png&optimize=mediumimages2001.01 s9.1 KB
https://developer.adobe.com/media_1a8a4b47d44f076842cab16735aaac4854df36e0a.png?width=2000&format=webply&optimize=mediumimages200997 ms638 B
https://developer.adobe.com/media_184c4c2a08b336a4011361b934ee59632b5db6c5d.png?width=2000&format=png&optimize=mediumimages200993 ms4.6 KB
https://developer.adobe.com/media_1a8a4b47d44f076842cab16735aaac4854df36e0a.png?width=750&format=webply&optimize=mediumimages200970 ms638 B
https://developer.adobe.com/media_1195dd635a36dae044fc10702efd9641f9b542c80.png?width=750&format=png&optimize=mediumimages200961 ms261.5 KB
https://developer.adobe.com/media_1a8a4b47d44f076842cab16735aaac4854df36e0a.png?width=750&format=png&optimize=mediumimages200959 ms1.1 KB
https://developer.adobe.com/hlx_statics/scripts/scripts.jsjavascript200922 ms10.0 KB
https://developer.adobe.com/media_195e7f0e26326422083e577594834c6951c4b3475.png?width=750&format=png&optimize=mediumimages200919 ms1.4 KB
https://developer.adobe.com/media_184c4c2a08b336a4011361b934ee59632b5db6c5d.png?width=750&format=png&optimize=mediumimages200917 ms4.6 KB
Report this page

The page is removed when the owner agrees. Sending this removes nothing by itself.

Run this test on your own site

The same engine, free, with the screenshots and the fixes. No account needed.