spencerharston.com
https://www.spencerharston.com/
Ranks Overall #897 Built Awesome #653
Data from Oct 5, 2026, 11:56 PM UTC old Measured once a week · 7 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
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
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 | 1.53 s good | ↓ -31 ms (-2%) 1.40 s – 1.57 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0.238 needs work | → no change 0.238 – 0.238 | |
| TBT Total Blocking Time | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 792 ms good | ↓ -652 ms (-45.2%) 792 ms – 1.57 s | |
| Speed Index | 792 ms good | ↓ -652 ms (-45.2%) 792 ms – 1.57 s | |
| TTFB Time to First Byte | 615 ms good | ↑ +134 ms (+27.9%) 454 ms – 643 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 | 50.1 kB | ↑ +3.2 kB (+7.1%) 43.9 kB – 50.1 kB | |
| Requests | 12 | → no change 12 – 12 | |
| Third-party Weight | 15.5 kB | ↑ +3.4 kB (+29%) 9.2 kB – 15.5 kB | |
| Third-party CPU | 2 ms | ↓ -1 ms (-35.7%) significant 2 ms – 3 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 0 B | → no change 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| font | 34.2% | 17.1 kB | 1 | |
| image | 19.9% | 10.0 kB | 1 | |
| script | 16.5% | 8.3 kB | 3 | |
| stylesheet | 14.6% | 7.3 kB | 3 | |
| other | 8.7% | 4.3 kB | 3 | |
| document | 6.1% | 3.1 kB | 1 | |
| Total | 50.1 kB | 12 |
Third parties 4 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Fastly | 10.0 kB | 0 ms | |
| zgo.at | 4.4 kB | 2 ms | |
| workers.dev | 725 B | 0 ms | |
| goatcounter.com | 382 B | 0 ms | |
| Total | 15.5 kB | 2 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 192 ms | ↓ -32 ms (-14.4%) significant 191 ms – 224 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 94 | → no change 94 – 94 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 5 | → no change 5 – 5 | |
| A11y Failures | 0 | → no change 0 – 0 | |
| A11y Failing Nodes | 0 | → no change 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 45% | 87 ms | |
| style layout | 31% | 60 ms | |
| script evaluation | 12% | 23 ms | |
| parse HTML | 5% | 10 ms | |
| paint composite render | 4% | 8 ms | |
| script parse compile | 2% | 4 ms | |
| Total | 192 ms |
Axe violations axe-core 4.13.0, full rule set
5 violating nodes across 2 rules, 203 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
minor
aria-allowed-role— ARIA role should be appropriate for the element 4 nodesOffending elements
-
a[title="Mastodon profile"]<a target="_blank" href="https://mastodon.social/@sphars" role="listitem" class="flex items-center gap-x-2" title="Mastodon profile" rel="noreferrer"> -
a[title="Bluesky profile"]<a target="_blank" href="https://bsky.app/profile/sphars.bsky.social" role="listitem" class="flex items-center gap-x-2" title="Bluesky profile" rel="noreferrer"> -
a[href$="sphars"]:nth-child(3)<a rel="noreferrer" target="_blank" href="https://github.com/sphars" role="listitem" class="flex items-center gap-x-2" title="GitHub profile"> -
a[title="Last.fm profile"]<a rel="noreferrer" target="_blank" href="https://www.last.fm/user/spencer314" role="listitem" class="flex items-center gap-x-2" title="Last.fm profile">
-
-
moderate
page-has-heading-one— Page should contain a level-one heading 1 nodeOffending element
-
html<html lang="en">
-
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 5, 2026, 11:56 PM UTC | 88 | 1.53 s | 0.238 | 0 ms | 50.1 kB | 3/3 | ±0 | 2,517 +1% | 20.7s |
|
|
| Sep 28, 2026, 6:36 PM UTC | 87 | 1.56 s | 0.238 | 0 ms | 46.8 kB | 3/3 | ±1 | 2,475 0% | 22s |
|
|
| Sep 21, 2026, 3:00 PM UTC | 88 | 1.54 s | 0.238 | 0 ms | 46.8 kB | 3/3 | ±6 | 2,500 +1% | 22s |
|
|
| Sep 14, 2026, 12:01 PM UTC | 87 | 1.57 s | 0.238 | 0 ms | 47.5 kB | 3/3 | ±1 | 2,483 0% | 21.5s |
|
|
| Sep 7, 2026, 9:06 AM UTC | 88 | 1.54 s | 0.238 | 0 ms | 49.5 kB | 3/3 | ±0 | 2,350 -5% | 21.2s |
|
|
| Aug 31, 2026, 4:01 AM UTC | 88 | 1.40 s | 0.238 | 0 ms | 43.9 kB | 3/3 | ±1 | 2,488 0% | 21.7s |
|
|
| Aug 21, 2026, 2:36 PM UTC | 88 | 1.57 s | 0.238 | 0 ms | 46.5 kB | 3/3 | ±7 | 2,330 -6% | 22.7s |
|
Embed this score
Use this web component to show spencerharston.com'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.spencerharston.com/"></speedlify2-score>