Dual-Engine Setups Vs. Single-Engine Configs
willysworkshop.com.au/blog/dual-engine-setups-vs-single-engine-configs ·
Mobile ·
2026-04-14 06:44:05
73
Performance
92
Accessibility
100
Best Practices
92
SEO
Core Web Vitals
| Metric | Value | Status |
|---|---|---|
| First Contentful Paint | 4.2 s | FAIL |
| Largest Contentful Paint | 4.2 s | FAIL |
| Total Blocking Time | 0 ms | PASS |
| Cumulative Layout Shift | 0.096 | PASS |
| Speed Index | 4.2 s | NEEDS WORK |
| Time to Interactive | 4.2 s | NEEDS WORK |
| TTFB | 674 ms | PASS |
| INP (predicted from TBT) | 0 ms TBT | PASS |
Page Stats
| TTFB | DOM Nodes | Scripts | Blocking | CSS Files | Images | Requests | Transfer |
|---|---|---|---|---|---|---|---|
| 674 ms | 0 | 2 | 0 | 9 | 13 | 88 | 1,495 KB |
Field Data (CrUX — Real Users)
Current (p75)
| Metric | p75 | Rating |
|---|---|---|
| CLS | 3 | FAST |
| FCP | 2743 | AVERAGE |
| INP | 234 | AVERAGE |
| LCP | 2796 | AVERAGE |
| TTFB | 2196 | SLOW |
Predicted (28-day rollover)
| Metric | Predicted p75 | Rating | Change |
|---|---|---|---|
| FCP | 3406 | SLOW | +663 |
| LCP | 4186 | SLOW | +1390 |
| INP | 3 | FAST | -231 |
| CLS | 14 | AVERAGE | +11 |
| TTFB | 64 | FAST | -2132 |
Based on latest lab results blended over the 4-week CrUX rolling window. Actual values may vary.
Opportunities
| Issue | Savings |
|---|---|
| Reduce initial server response time | Root document took 670 ms |
| Reduce unused JavaScript | Est savings of 62 KiB |
| Reduce unused CSS | Est savings of 205 KiB |