Scan comparison
Green: scan A is better than scan B, red: scan A is worse. The change is always scan A − scan B.
vs.
-3
Filmstrip comparison
Scan A
15:00
94
FCP
LCP
Finished
Scan B
03:00
97
FCP
LCP
Finished
FCP
384 ms
vs.
900 ms
−516 ms
LCP
384 ms
vs.
900 ms
−516 ms
Finished
1.01 s
vs.
1.53 s
−518 ms
Score
94
vs.
97
-3
Scores
| Category | Scan A | Change | Scan B |
|---|---|---|---|
| Total | 94 | -3 | 97 |
| Speed | 92 | -8 | 100 |
| Images | 93 | 0 | 93 |
| Caching | 91 | 0 | 91 |
| WordPress | 100 | 0 | 100 |
| Technical | 100 | 0 | 100 |
Core metrics
Lab values from the Mobile profile (390 px). TTFB is measured by the check server and applies to both profiles.
| Metric | Scan A | Change | Scan B |
|---|---|---|---|
| TTFB i | 645 ms Needs improvement | +418 ms | 227 ms Good |
| FCP i | 328 ms Good | ≈ 0 | 312 ms Good |
| LCP i | 328 ms Good | ≈ 0 | 312 ms Good |
| CLS i | 0 Good | ≈ 0 | 0 Good |
| TBT i | 0 ms Good | ≈ 0 | 5 ms Good |
| Requests i | 6 Good | ≈ 0 | 6 Good |
| Data volume i | 47.4 KB | ≈ 0 | 47.4 KB |
Page build timing
Navigation timing from the real page load in the browser.
Desktop (1440 px)
| Phase | Scan A | Change | Scan B |
|---|---|---|---|
| DNS | 7 ms | ≈ 0 | 3 ms |
| TCP connection | 18 ms | ≈ 0 | 20 ms |
| TTFB | 173 ms | −514 ms | 687 ms |
| Transfer | 2 ms | ≈ 0 | 4 ms |
| DOM loaded | 359 ms | −487 ms | 846 ms |
| Page loaded | 387 ms | −493 ms | 880 ms |
Mobile (390 px)
| Phase | Scan A | Change | Scan B |
|---|---|---|---|
| DNS | 7 ms | ≈ 0 | — |
| TCP connection | 22 ms | ≈ 0 | 13 ms |
| TTFB | 153 ms | +28 ms | 125 ms |
| Transfer | 2 ms | ≈ 0 | 5 ms |
| DOM loaded | 311 ms | +33 ms | 278 ms |
| Page loaded | 332 ms | +32 ms | 300 ms |
Comparison of problems
Problems and warnings compared between the two scans (warnings and errors only).
New problems in scan A (1)
Server response can be improved
The server response takes around 645 ms.
Unchanged (2)
Lazy loading is not clearly detectable
Images were detected, but no loading="lazy" on any image element.
No modern image formats detected
No WebP or AVIF image files were detected in the HTML image sources.
Deductions by category
Which individual points influence the score the most.
| Scan A | Label | Scan B |
|---|---|---|
| Speed | ||
| −8 pts | Slightly elevated TTFB (Server response approx. 645 ms) | — |
| Images | ||
| −3 pts | No clear lazy loading (No lazy loading indicators found) | −3 pts |
| −4 pts | No modern image formats (No WebP/AVIF detected) | −4 pts |
| Caching | ||
| −5 pts | Caching partly disabled (no-cache, private) | −5 pts |
| −4 pts | No clear page cache indicator (No HIT/Age indicators detected) | −4 pts |