Scan comparison
Green: scan A is better than scan B, red: scan A is worse. The change is always scan A − scan B.
vs.
-5
Filmstrip comparison
Scan A
00:00
85
FCP
LCP
Finished
Scan B
06:00
90
FCP
LCP
Finished
FCP
320 ms
vs.
336 ms
−16 ms
LCP
320 ms
vs.
336 ms
−16 ms
Finished
992 ms
vs.
912 ms
+80 ms
Score
85
vs.
90
-5
Scores
| Category | Scan A | Change | Scan B |
|---|---|---|---|
| Total | 85 | -5 | 90 |
| Speed | 70 | -12 | 82 |
| 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 | 1.4 s Needs improvement | +504 ms | 898 ms Needs improvement |
| FCP i | 292 ms Good | ≈ 0 | 296 ms Good |
| LCP i | 292 ms Good | ≈ 0 | 296 ms Good |
| CLS i | 0 Good | ≈ 0 | 0 Good |
| TBT i | 0 ms Good | ≈ 0 | 0 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 | 5 ms | ≈ 0 | 8 ms |
| TCP connection | 20 ms | ≈ 0 | 14 ms |
| TTFB | 113 ms | ≈ 0 | 116 ms |
| Transfer | 3 ms | ≈ 0 | 2 ms |
| DOM loaded | 292 ms | ≈ 0 | 276 ms |
| Page loaded | 324 ms | +25 ms | 299 ms |
Mobile (390 px)
| Phase | Scan A | Change | Scan B |
|---|---|---|---|
| DNS | 20 ms | ≈ 0 | 2 ms |
| TCP connection | 18 ms | ≈ 0 | 16 ms |
| TTFB | 147 ms | +39 ms | 108 ms |
| Transfer | 2 ms | ≈ 0 | 3 ms |
| DOM loaded | 279 ms | ≈ 0 | 266 ms |
| Page loaded | 299 ms | ≈ 0 | 282 ms |
Comparison of problems
Problems and warnings compared between the two scans (warnings and errors only).
Only in scan A (1)
Server responds slowly
The server response takes around 1.4 s. That slows down page rendering very early on.
Only in scan B (1)
Server response can be improved
The server response takes around 898 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 | ||
| −30 pts | High TTFB (Server response approx. 1.4 s) | — |
| — | Elevated TTFB (Server response approx. 898 ms) | −18 pts |
| 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 |