bookstore.guide
Ranks Overall #693 11ty Emeritus
Data from Sep 18, 2026, 8:28 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
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 | 1.74 s good | ↑ +803 ms (+85.3%) significant 941 ms – 1.74 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 | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 1.74 s good | ↑ +803 ms (+85.3%) significant 941 ms – 1.74 s | |
| Speed Index | 1.74 s good | ↑ +803 ms (+85.3%) significant 941 ms – 1.74 s | |
| TTFB Time to First Byte | 750 ms good | ↑ +4 ms (+0.5%) 746 ms – 766 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 | 15.3 kB | ↑ +2 B 15.3 kB – 15.3 kB | |
| Requests | 4 | → no change 4 – 4 | |
| Third-party Weight | 3.2 kB | ↑ +2 B (+0.1%) 3.2 kB – 3.2 kB | |
| Third-party CPU | 3 ms | ↑ +0 ms (+18.2%) 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 |
|---|---|---|---|---|
| document | 70.3% | 7.5 kB | 1 | |
| script | 25.7% | 2.8 kB | 1 | |
| image | 4% | 435 B | 1 | |
| Total | 15.3 kB | 4 |
Third parties 1 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Fathom Analytics | 3.2 kB | 3 ms | |
| Total | 3.2 kB | 3 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 182 ms | ↑ +8 ms (+4.5%) 174 ms – 191 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 464 | → no change 464 – 464 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 1 | → no change 1 – 1 | |
| A11y Failures | 0 | → no change 0 – 0 | |
| A11y Failing Nodes | 0 | → no change 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 39% | 72 ms | |
| style layout | 37% | 67 ms | |
| script evaluation | 11% | 20 ms | |
| paint composite render | 8% | 14 ms | |
| parse HTML | 4% | 7 ms | |
| script parse compile | 1% | 2 ms | |
| Total | 182 ms |
Axe violations axe-core 4.13.0, full rule set
1 violating node across 1 rule, 853 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
moderate
region— All page content should be contained by landmarks 1 node
Best Practices failures 1 of 18 audits
-
charset— Charset declaration is missing or occurs too late in the HTML
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026, 8:28 PM UTC | 99 | 1.74 s | 0 | 0 ms | 15.3 kB | 3/3 | ±25 | 2,716 +9% | 27.1s |
|
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| Sep 11, 2026, 5:33 PM UTC | 100 | 941 ms | 0 | 0 ms | 15.3 kB | 3/3 | ±1 | 2,498 0% | 24.3s |
|
|
| Sep 4, 2026, 2:50 PM UTC | 100 | 1.74 s | 0 | 0 ms | 15.3 kB | 3/3 | ±30 | 2,484 0% | 27.9s |
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| Aug 28, 2026, 1:49 PM UTC | 100 | 1.74 s | 0 | 0 ms | 15.3 kB | 3/3 | ±22 | 2,478 0% | 27.9s |
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| Aug 20, 2026, 7:11 PM UTC | 100 | 1.73 s | 0 | 0 ms | 15.3 kB | 3/3 | ±21 | 2,497 0% | 28.3s |
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