covidtracking.com
Ranks Overall #1,466 11ty Emeritus
Data from Sep 18, 2026, 8:37 PM UTC old Measured once a month · 5 runs since Aug 20, 2026
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Wayback Machine
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 FIELD
Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-20 → 2026-09-16), origin-level.
| Metric | Lab Simulated | Field | |||
|---|---|---|---|---|---|
| Value | Change / range | Trend | p75 | Distribution | |
| LCP CWV Largest Contentful Paint | 4.23 s poor | ↑ +443 ms (+11.7%) 3.19 s – 4.23 s | 1.16 s good | 94.8% 1.7% 3.5% | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | — | — | |
| CLS CWV Cumulative Layout Shift | 0 good | → no change 0 – 0 | 0 good | 95.8% 2.7% 1.5% | |
| TBT Total Blocking Time | 572 ms needs work | ↑ +17 ms (+3.1%) 392 ms – 572 ms | n/a | — | |
| FCP First Contentful Paint | 3.05 s poor | ↑ +519 ms (+20.5%) significant 2.44 s – 3.05 s | 1.17 s good | 90.9% 4.9% 4.1% | |
| Speed Index | 3.05 s good | ↑ +519 ms (+20.5%) significant 2.44 s – 3.05 s | n/a | — | |
| TTFB Time to First Byte | 503 ms good | ↑ +17 ms (+3.5%) 486 ms – 636 ms | 593 ms good | 86.1% 10.7% 3.2% | |
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.
LCP LAB Simulated vs LCP FIELD
The lab LCP is 3.64× the field p75 — real users likely have above-average hardware or network connectivity.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 2.47 MB | ↑ +341.3 kB (+16.5%) significant 2.12 MB – 2.47 MB | |
| Requests | 180 | → no change 180 – 180 | |
| Third-party Weight | 387 kB | ↓ -1.3 kB (-0.3%) 378 kB – 388 kB | |
| Third-party CPU | 52 ms | ↑ +1 ms (+1.7%) 43 ms – 53 ms | |
| Unused JS | 253 kB | ↑ +155.9 kB (+171.7%) significant 93.0 kB – 253 kB | |
| Unused CSS | 32.9 kB | → no change 32.9 kB – 33.0 kB |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| image | 65.2% | 1.61 MB | 129 | |
| script | 21.6% | 535 kB | 11 | |
| other | 5.6% | 138 kB | 28 | |
| font | 5% | 124 kB | 5 | |
| document | 2.6% | 64.4 kB | 1 | |
| Total | 2.47 MB | 180 |
Third parties 5 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Google CDN | 354 kB | 38 ms | |
| Google Analytics | 20.9 kB | 9 ms | |
| Cloudflare | 10.2 kB | 4 ms | |
| Other Google APIs/SDKs | 1.0 kB | 1 ms | |
| Cloudflare CDN | 715 B | 0 ms | |
| Total | 387 kB | 52 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 2.67 s | ↓ -162 ms (-5.7%) 2.24 s – 2.84 s | |
| Long Tasks | 5 | ↓ -1 (-16.7%) 4 – 6 | |
| DOM Elements | 674 | → no change 674 – 674 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 7 | → no change 7 – 7 | |
| A11y Failures | 2 | → no change 2 – 2 | |
| A11y Failing Nodes | 6 | → no change 6 – 6 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| script evaluation | 32% | 863 ms | |
| other | 31% | 833 ms | |
| style layout | 28% | 737 ms | |
| script parse compile | 5% | 143 ms | |
| parse HTML | 2% | 53 ms | |
| paint composite render | 2% | 44 ms | |
| Total | 2.67 s |
Axe violations axe-core 4.13.0, full rule set
7 violating nodes across 3 rules, 916 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
serious
list— <ul> and <ol> must only directly contain <li>, <script> or <template> elements 5 nodes -
critical
aria-required-children— Certain ARIA roles must contain particular children 1 node -
moderate
region— All page content should be contained by landmarks 1 node
Accessibility failures 2 of 28 audits
-
list— Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 5 nodes -
aria-required-children— Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. 1 node
Best Practices failures 1 of 20 audits
-
errors-in-console— Browser errors were logged to the console 3 items
Hygiene
Measurement log
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-09-26 | 1.07 s | — | 0 | 1.07 s | 550 ms |
| 2026-09-19 | 1.16 s | — | 0 | 1.16 s | 560 ms |
| 2026-09-12 | 1.16 s | — | 0 | 1.16 s | 612 ms |
| 2026-09-05 | 1.27 s | — | 0 | 1.27 s | 641 ms |
| 2026-08-29 | 1.26 s | — | 0 | 1.27 s | 621 ms |
| 2026-08-22 | 990 ms | — | 0 | 1.04 s | 567 ms |
| 2026-08-15 | 932 ms | — | 0 | 939 ms | 508 ms |
| 2026-08-08 | 951 ms | — | 0 | 944 ms | 537 ms |
| 2026-08-01 | 898 ms | — | 0 | 897 ms | 471 ms |
| 2026-07-25 | 929 ms | — | 0 | 930 ms | 540 ms |
| 2026-07-18 | 1.09 s | — | 0 | 1.06 s | 650 ms |
| 2026-07-11 | 929 ms | — | 0 | 960 ms | 609 ms |
Runs
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026, 8:37 PM UTC | 66 | 4.23 s | 0 | 572 ms | 2.47 MB | 3/3 | ±20 | 2,318 -7% | 33.4s |
|
|
| Sep 11, 2026, 5:42 PM UTC | 71 | 3.78 s | 0 | 555 ms | 2.12 MB | 3/3 | ±24 | 2,499 +1% | 33.5s |
|
|
| Sep 4, 2026, 2:58 PM UTC | 71 | 3.82 s | 0 | 553 ms | 2.25 MB | 3/3 | ±2 | 2,519 +1% | 32.9s |
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|
| Aug 28, 2026, 1:58 PM UTC | 76 | 3.19 s | 0 | 534 ms | 2.47 MB | 3/3 | ±2 | 2,376 -4% | 32.5s |
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| Aug 20, 2026, 7:09 PM UTC | 76 | 3.79 s | 0 | 392 ms | 2.39 MB | 3/3 | ±13 | 2,892 +16% | 30s |
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