www.aap.org speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 14:18 UTC. Grade D (66/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 115 ms 27%
- TCP connect 28 ms 6%
- Server wait 291 ms 67%
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
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 arrived in 433 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 4.16 MB over 26 request(s). Javascript files are 57% of it, so defer what is not needed for the first screen, and drop tags nobody uses.
- The HTML itself arrives gzip-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- 21% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
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.
The headless browser did not capture this page when the test ran, so only the server measurements are shown.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 26 request(s) in total, 4.16 MB across all of them.
Top issues
Server response time (TTFB)
high impactThe first byte arrived after 433 ms. Of that, 291 ms was the server thinking and 143 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.
Compress text responses
high impact1 text response(s) of 10 KB or more are sent uncompressed, and the document itself is not compressed. That is 131.2 KB of compressible text.
Fix: Turn on brotli (preferred) or gzip for text/css, javascript and text/html in the web server. This is the cheapest win available on almost any site.
Image delivery and format
high impact3 image(s) over 200 KB and 6 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 impactThe page transfers 4.16 MB across 26 request(s), with the document itself at 17.5 KB.
Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.
Third-party weight
medium impact6 third-party host(s) serve 880.8 KB 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.
Waterfall
Slowest requests
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
| Request | Type | Status | Time | Size |
|---|---|---|---|---|
| https://www.aap.org/ | html | 200 | 1.02 s | 17.5 KB |
| https://www.aap.org/globalassets/ai-workflows-hero.jpg | images | 200 | 931 ms | 38.8 KB |
| https://web.cmp.usercentrics.eu/modules/autoblocker.js 3rd party | javascript | 200 | 894 ms | 19.6 KB |
| https://ajax.googleapis.com/ajax/libs/webfont/1.5.18/webfont.js 3rd party | javascript | 200 | 894 ms | 6.3 KB |
| https://www.aap.org/Bundles/js/shop-carousel-bundle.js?v=f974dca9a54234722f82b4879bc9ba5991ac491d9e143458833532515dcb7142 | javascript | 200 | 887 ms | 74.1 KB |
| https://www.aap.org/Bundles/js/common-bundle.js?v=48cda9011eb4a5e7db71c59c70da30102c072b66f055786b41294e68d8bd8275 | javascript | 200 | 885 ms | 637.6 KB |
| https://web.cmp.usercentrics.eu/ui/loader.js 3rd party | javascript | 200 | 884 ms | 19.5 KB |
| https://securepubads.g.doubleclick.net/tag/js/gpt.js 3rd party | javascript | 200 | 880 ms | 131.2 KB |
| https://www.aap.org/Images/Favicon/AAP-Favicon-4_Black.png | images | 200 | 880 ms | 4.2 KB |
| https://www.aap.org/Bundles/js/date-picker-bundle.js?v=116c5e9b33ec94d6a08bd63041124238e53adf2bb8d5cf152a7d71b642d79711 | javascript | 200 | 877 ms | 109.3 KB |
| https://www.aap.org/Util/Find/epi-util/find.js | javascript | 200 | 870 ms | 2.2 KB |
| https://players.brightcove.net/6056665225001/default_default/index.js 3rd party | javascript | 200 | 868 ms | 652.5 KB |
| https://www.aap.org/Bundles/js/global-bundle.js?v=53830c8fdcf052485d8b5d0786895eaf6b76110761b90a0a0ae92ae155b6f1f7 | javascript | 200 | 867 ms | 710.2 KB |
| https://www.googletagmanager.com/ns.html?id=GTM-N2RV28J 3rd party | html | 200 | 867 ms | 167 B |
| https://www.aap.org/Bundles/js/content-page-google-analytics-bundle.js?v=97b635a5c15a0de28ed9a9c1f0367df21e56f90f23b3e2ef52cd50767caeb807 | javascript | 200 | 857 ms | 3.1 KB |
| https://www.aap.org/Bundles/css/main.css?v=3899a9a0a8453399dc0b25234d0e35b9e211d18dc92cc1c8304464117ab17ce8 | css | 200 | 847 ms | 136.1 KB |
| https://platform-api.sharethis.com/js/sharethis.js#property=6480b01ae58f550012ea9faa&product=sop 3rd party | javascript | 200 | 843 ms | 51.5 KB |
| https://www.aap.org/contentassets/4a29ab05d5a3414793aa072343c7b0e2/happy_children_outdoors_223kb.jpg | images | 200 | 838 ms | 222.6 KB |
| https://www.aap.org/contentassets/1a8e31dbb5344ca090cdce77a1600cb1/children_holding_globe_compressed.jpg | images | 200 | 838 ms | 179.1 KB |
| https://www.aap.org/globalassets/images/homepage/oral-health-teeth-toothbrush-teen-hero.jpg | images | 200 | 838 ms | 152.0 KB |
| https://www.aap.org/globalassets/raw_milk_pitcher_hero.jpg | images | 200 | 838 ms | 97.4 KB |
| https://www.aap.org/globalassets/patient-care/center-of-excellence/teen_friends_outside_960x640.jpg | images | 200 | 837 ms | 455.0 KB |
| https://www.aap.org/globalassets/images/homepage/shot-of-a-baby-sitting-on-her-mothers-lap.jpg | images | 200 | 837 ms | 297.3 KB |
| https://www.aap.org/contentassets/81b4ef8a7abc4aaaa00d50210cb34434/diverse_group_of_children_compressed.jpg | images | 200 | 837 ms | 169.2 KB |
| https://www.aap.org/globalassets/images/homepage/black-pediatrician-listening-to-girl.jpg | images | 200 | 837 ms | 60.7 KB |
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