www.cengage.com speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 14:37 UTC. Grade B (85/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 59 ms 33%
- TCP connect 24 ms 14%
- Server wait 94 ms 53%
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 server answered in 177 ms, which is fast: almost all of the wait is the page itself, not the host.
- The page transfers 1.34 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.
- 54% 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 1.22 s, inside the 2.5 s Google calls good.
- Layout stayed still (CLS 0.032), so nothing jumps under the reader's cursor.
- The main thread was blocked for 643 ms, 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.
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.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 26 request(s) in total, 1.34 MB across all of them.
Top issues
Image delivery and format
high impact1 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.
Render-blocking resources
high impact8 render-blocking resource(s) in the document head (5 script(s), 3 stylesheet(s)). The page cannot paint until each one arrives.
Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.
Total page weight
medium impactThe page transfers 1.34 MB across 26 request(s), with the document itself at 28.2 KB.
Fix: Work through the heaviest assets first: images, then fonts, then third-party scripts.
Third-party weight
medium impact7 third-party host(s) serve 748.3 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.
JavaScript weight
medium impact1 JavaScript file(s) over 200 KB: main.js (310.7 KB)
Fix: Split routes, remove unused dependencies, and prefer a two-file build (one pinned library, one application bundle) over many small ones.
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://play.vidyard.com/embed/v4.js 3rd party | javascript | 200 | 1.38 s | 22.8 KB |
| https://www.googletagmanager.com/ns.html?id=GTM-5ZZ9XQ9 3rd party | html | 200 | 1.03 s | 92 B |
| https://cdn.evgnet.com/beacon/cengagelearning/cengage_com/scripts/evergage.min.js 3rd party | javascript | 200 | 993 ms | 48.5 KB |
| https://instant.page/5.1.0 3rd party | javascript | 200 | 969 ms | 1.1 KB |
| https://www.cengage.com/binaries/content/gallery/cengage-us-en/svg/cengage-primary-white-v3.svg | images | 200 | 966 ms | 2.1 KB |
| https://embed.widencdn.net/img/cengage/i6vcgmaswk/1600px@1x/2675280-student-icon.png?q=10 3rd party | images | 200 | 957 ms | 170.4 KB |
| https://embed.widencdn.net/img/cengage/s3agghejyt/1600px@1x/cengage-new-logo-primary.jpg?q=10 3rd party | images | 200 | 956 ms | 8.0 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/favicons/favicon.ico | images | 200 | 954 ms | 502 B |
| https://qa-www.cengage.com/binaries/content/gallery/cengage-us-en/icons/new-nav-icons/2435930-contact-support.png 3rd party | images | 200 | 953 ms | 8.0 KB |
| https://embed.widencdn.net/img/cengage/qkdnu0jv7h/1600px@1x/2675280-instructor-icon.png?q=10 3rd party | images | 200 | 947 ms | 122.7 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/favicons/manifest.json | other | 200 | 941 ms | 205 B |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/favicons/favicon-16x16.png | images | 200 | 940 ms | 412 B |
| https://embed.widencdn.net/img/cengage/zrtrrsfjrg/1600px@1x/4267880-margaret-mcmenamin-promo.jpg?q=10 3rd party | images | 200 | 937 ms | 17.2 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/favicons/favicon-32x32.png | images | 200 | 937 ms | 704 B |
| https://embed.widencdn.net/img/cengage/pcy3h6mizv/1600px@1x/2675280-adminstrator-icon.png?q=10 3rd party | images | 200 | 936 ms | 229.4 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/favicons/apple-touch-icon.png | images | 200 | 935 ms | 3.1 KB |
| https://cdn.optimizely.com/js/8392411042.js 3rd party | javascript | 200 | 931 ms | 120.1 KB |
| https://www.cengage.com/webfiles/1791364665661/js/custom-js/skip-link-handler.js | javascript | 200 | 931 ms | 545 B |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/main.js | javascript | 200 | 929 ms | 310.7 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/globHeader.js | javascript | 200 | 929 ms | 96.1 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/analytics.js | javascript | 200 | 929 ms | 84.1 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/footer.js | javascript | 200 | 929 ms | 4.1 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/init.js | javascript | 200 | 927 ms | 89.3 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/modernizr-custom.js | javascript | 200 | 927 ms | 4.2 KB |
| https://www.cengage.com/webfiles/1791364665661/cengage/common/js/shared.js | javascript | 200 | 927 ms | 783 B |
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