usac.ucla.edu
Ranks Overall #988 Built Awesome #770
Data from Sep 21, 2026, 1:07 AM UTC old Measured once a week · 6 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
Wayback Machine
https://usac.ucla.edu/.
History from the previous URL is included below, with the move on Sep 6, 2026. A step-change around that point is likely the change of address rather than a regression.
Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).
Stack
Lighthouse Scores LAB Simulated
Metrics LAB
No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.
| Metric | Lab Simulated | ||
|---|---|---|---|
| Value | Change / range | Trend | |
| LCP CWV (estimate) Largest Contentful Paint | 15.61 s poor | ↓ -1765 ms (-10.2%) significant 15.51 s – 18.04 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0 good | → no change 0 – 0 | |
| TBT Total Blocking Time | 293 ms needs work | ↓ -106 ms (-26.6%) 212 ms – 735 ms | |
| FCP First Contentful Paint | 3.54 s poor | ↓ -4 ms (-0.1%) 3.35 s – 4.26 s | |
| Speed Index | 4.69 s needs work | ↓ -1056 ms (-18.4%) significant 4.69 s – 5.75 s | |
| TTFB Time to First Byte | 683 ms good | ↓ -4 ms (-0.6%) 636 ms – 704 ms | |
LCP Subparts LAB Unthrottled
The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 3.60 MB | ↑ +67.6 kB (+2%) 3.53 MB – 3.76 MB | |
| Requests | 79 | → no change 79 – 80 | |
| Third-party Weight | 3.55 MB | ↑ +68.2 kB (+2%) 3.48 MB – 3.70 MB | |
| Third-party CPU | 239 ms | ↓ -53 ms (-18.2%) 230 ms – 348 ms | |
| Unused JS | 526 kB | ↑ +53.0 kB (+11.5%) 471 kB – 630 kB | |
| Unused CSS | 130 kB | ↑ +38 B 130 kB – 131 kB |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| image | 47.5% | 1.71 MB | 8 | |
| script | 43.6% | 1.57 MB | 52 | |
| stylesheet | 4.6% | 166 kB | 11 | |
| font | 2.3% | 83.5 kB | 5 | |
| document | 1.3% | 47.5 kB | 1 | |
| other | 0.6% | 23.3 kB | 2 | |
| Total | 3.60 MB | 79 |
Third parties 5 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| squarespace-cdn.com | 1.81 MB | 0 ms | |
| Squarespace | 1.24 MB | 188 ms | |
| Cloudflare CDN | 347 kB | 29 ms | |
| sqspcdn.com | 122 kB | 8 ms | |
| Google CDN | 33.5 kB | 15 ms | |
| Total | 3.55 MB | 239 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 3.02 s | ↓ -367 ms (-10.8%) 3.02 s – 4.69 s | |
| Long Tasks | 14 | ↓ -1 (-6.7%) 14 – 20 | |
| DOM Elements | 1,402 | → no change 1,402 – 1,402 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 3 | → no change 3 – 3 | |
| A11y Failures | 2 | → no change 2 – 2 | |
| A11y Failing Nodes | 4 | → no change 4 – 4 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 29% | 875 ms | |
| script evaluation | 25% | 768 ms | |
| style layout | 24% | 739 ms | |
| script parse compile | 14% | 418 ms | |
| parse HTML | 4% | 115 ms | |
| paint composite render | 3% | 80 ms | |
| garbage collection | 1% | 27 ms | |
| Total | 3.02 s |
Axe violations axe-core 4.13.0, full rule set
3 violating nodes across 1 rule, 931 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
moderate
heading-order— Heading levels should only increase by one 3 nodes
Accessibility failures 2 of 28 audits
-
heading-order— Heading elements are not in a sequentially-descending order 3 nodes -
target-size— Touch targets do not have sufficient size or spacing. 1 node
SEO failures 2 of 10 audits
-
meta-description— Document does not have a meta description -
link-text— Links do not have descriptive text 1 item
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026, 1:07 AM UTC | 59 | 15.61 s | 0 | 293 ms | 3.60 MB | 3/3 | ±20 | 3,001 +21% | 35.1s |
|
|
| Sep 14, 2026, 12:45 AM UTC | 54 | 17.38 s | 0 | 399 ms | 3.53 MB | 3/3 | ±15 | 2,962 +19% | 37s |
|
|
| Sep 6, 2026, 11:30 PM UTC | 61 | 18.04 s | 0 | 212 ms | 3.76 MB | 3/3 | ±9 | 2,992 +20% | 35.4s |
|
|
| Sep 6, 2026, 6:51 PM UTC old URL | 45 | 16.00 s | 0 | 735 ms | 3.54 MB | 3/3 | ±10 | 2,258 -9% | 46.7s |
|
|
| Aug 30, 2026, 5:55 PM UTC old URL | 53 | 15.51 s | 0 | 416 ms | 3.56 MB | 3/3 | ±14 | 2,352 -5% | 43.7s |
|
|
| Aug 21, 2026, 10:28 AM UTC old URL | 47 | 16.01 s | 0 | 657 ms | 3.54 MB | 3/3 | ±10 | 2,494 0% | 42.5s |
|
Embed this score
Use this web component to show usac.ucla.edu's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!
<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://www.usac.ucla.edu/"></speedlify2-score>