docs.duendesoftware.com
https://docs.duendesoftware.com/
Ranks Overall #889 Astro Showcase #54
Data from Oct 2, 2026, 6:55 AM UTC old Measured once a month · 1 run since Oct 2, 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 FIELD
Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-02 → 2026-09-29), origin-level.
| Metric | Lab Simulated | Field | |||
|---|---|---|---|---|---|
| Value | Change / range | Trend | p75 | Distribution | |
| LCP CWV Largest Contentful Paint | 3.54 s needs work | — 3.54 s – 3.54 s | 1.19 s good | 95.5% 3.7% 0.8% | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | 72 ms good | 94.7% 4.1% 1.1% | |
| CLS CWV Cumulative Layout Shift | 0 good | — 0 – 0 | 0 good | 96.7% 2.7% 0.6% | |
| TBT Total Blocking Time | 1.24 s poor | — 1.24 s – 1.24 s | n/a | — | |
| FCP First Contentful Paint | 1.01 s good | — 1.01 s – 1.01 s | 1.11 s good | 90.8% 6.8% 2.5% | |
| Speed Index | 1.01 s good | — 1.01 s – 1.01 s | n/a | — | |
| TTFB Time to First Byte | 618 ms good | — 618 ms – 618 ms | 708 ms good | 80.3% 16.6% 3.1% | |
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 2.96× the field p75 — real users likely have above-average hardware or network connectivity.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 3.44 MB | — 3.44 MB – 3.44 MB | |
| Requests | 47 | — 47 – 47 | |
| Third-party Weight | 1.00 MB | — 1.00 MB – 1.00 MB | |
| Third-party CPU | 299 ms | — 299 ms – 299 ms | |
| Unused JS | 2.13 MB | — 2.13 MB – 2.13 MB | |
| Unused CSS | 0 B | — 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| script | 80.4% | 2.75 MB | 19 | |
| image | 8.8% | 303 kB | 10 | |
| other | 6.6% | 226 kB | 8 | |
| font | 2.9% | 101 kB | 3 | |
| stylesheet | 0.8% | 26.9 kB | 3 | |
| document | 0.5% | 16.0 kB | 1 | |
| Total | 3.44 MB | 47 |
Third parties 5 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Google Tag Manager | 659 kB | 220 ms | |
| Hubspot | 339 kB | 74 ms | |
| ahrefs.com | 3.3 kB | 4 ms | |
| Google/Doubleclick Ads | 2.7 kB | 1 ms | |
| Other Google APIs/SDKs | 105 B | 0 ms | |
| Total | 1.00 MB | 299 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 3.26 s | — 3.26 s – 3.26 s | |
| Long Tasks | 12 | — 12 – 12 | |
| DOM Elements | 342 | — 342 – 342 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | — 0 – 0 | |
| A11y Failures | 0 | — 0 – 0 | |
| A11y Failing Nodes | 0 | — 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| script evaluation | 47% | 1.53 s | |
| other | 34% | 1.10 s | |
| style layout | 8% | 277 ms | |
| script parse compile | 7% | 242 ms | |
| garbage collection | 2% | 52 ms | |
| parse HTML | 1% | 34 ms | |
| paint composite render | 1% | 27 ms | |
| Total | 3.26 s |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 428 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Best Practices failures 3 of 19 audits
-
third-party-cookies— Uses third-party cookies 7 items -
inspector-issues— Issues were logged in the `Issues` panel in Chrome Devtools 1 item -
valid-source-maps— Missing source maps for large first-party JavaScript 2 items
SEO failures 1 of 10 audits
-
link-text— Links do not have descriptive text 7 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 | 1.17 s | 74 ms | 0 | 1.09 s | 693 ms |
| 2026-09-19 | 999 ms | 69 ms | 0 | 916 ms | 631 ms |
| 2026-09-12 | 1.01 s | 69 ms | 0 | 914 ms | 689 ms |
| 2026-09-05 | 988 ms | 67 ms | 0 | 859 ms | 667 ms |
| 2026-08-29 | 988 ms | — | 0 | 857 ms | 663 ms |
| 2026-08-22 | 1.04 s | — | 0.010 | 955 ms | 710 ms |
| 2026-08-15 | 1.13 s | — | 0.030 | 1.10 s | 728 ms |
| 2026-08-08 | 1.13 s | — | 0 | 1.10 s | 729 ms |
| 2026-08-01 | 1.26 s | 79 ms | 0.010 | 1.17 s | 820 ms |
| 2026-07-25 | 1.34 s | — | 0 | 1.28 s | 893 ms |
| 2026-07-18 | 1.32 s | — | 0 | 1.24 s | 840 ms |
| 2026-07-11 | 1.30 s | 79 ms | 0 | 1.25 s | 833 ms |
Runs
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2, 2026, 6:55 AM UTC | 66 | 3.54 s | 0 | 1.24 s | 3.44 MB | 3/3 | ±16 | 2,486 0% | 30s |
|