Detailed summary for https://stf.xelta.ai tested 214 pages at 2026-09-08 12:48:57

214 pages analysed for https://stf.xelta.ai

Tested 2026-09-08 12:48:57 using Chrome (runtime settings)

What stands outTotal Blocking Time is 848 ms, poor (good is 200 ms or less)8 4xx/5xx responses per page: something the pages fetch is failing

Every collected metric, grouped by what it tells you, with min / median / mean / p90 / max across all runs. Click a column header to sort.

4 metrics

How the Coach rates the pages, 0–100; higher is better.

Metric	min	median	mean	p90	max
Coach score	65	69	69	70	87
Coach performance score	61	70	70	72	99
Privacy score	60	60	60	60	82
Best Practice score	57	91	87	91	99

18 metrics

The user experience milestones, plus the classic navigation timings.

Metric	min	median	mean	p90	max
Largest Contentful Paint	1.032 s	2.970 s	3.273 s	5.016 s	13.112 s
First Contentful Paint	520 ms	1.244 s	1.608 s	2.528 s	13.112 s
First Paint	520 ms	1.048 s	1.142 s	1.400 s	10.024 s
First Paint	520 ms	1.048 s	1.142 s	1.400 s	10.024 s
Cumulative Layout Shift	0	0	0.0029	0.0019	0.1391
Total Blocking Time	0 ms	848 ms	965 ms	1.555 s	5.737 s
Max Potential First Input Delay	0 ms	288 ms	334 ms	443 ms	2.757 s
Fully Loaded	1.192 s	8.790 s	8.913 s	10.551 s	23.165 s
backEndTime	159 ms	348 ms	380 ms	505 ms	1.773 s
domContentLoadedTime	435 ms	700 ms	845 ms	1.105 s	9.560 s
domInteractiveTime	187 ms	528 ms	604 ms	877 ms	3.573 s
domainLookupTime	0 ms	1 ms	6 ms	12 ms	377 ms
frontEndTime	43 ms	496 ms	811 ms	1.410 s	10.869 s
pageDownloadTime	3 ms	70 ms	169 ms	376 ms	2.954 s
pageLoadTime	453 ms	938 ms	1.361 s	2.175 s	12.849 s
redirectionTime	0 ms	0 ms	8 ms	0 ms	1.316 s
serverConnectionTime	0 ms	28 ms	47 ms	63 ms	726 ms
serverResponseTime	155 ms	367 ms	473 ms	735 ms	3.245 s

6 metrics

What the film strip shows: when content became visible on screen.

Metric	min	median	mean	p90	max
First Visual Change	433 ms	633 ms	745 ms	934 ms	9.620 s
Speed Index	836 ms	2.325 s	2.437 s	3.413 s	12.122 s
Visual Complete 85%	636 ms	3.376 s	3.650 s	5.479 s	14.133 s
Visual Complete 95%	767 ms	3.867 s	4.151 s	6.966 s	14.133 s
Visual Complete 99%	1.033 s	4.333 s	4.782 s	7.641 s	14.267 s
Last Visual Change	1.034 s	5.700 s	6.074 s	7.675 s	14.333 s

2 metrics

Main thread work: long tasks block the page from reacting to input.

Metric	min	median	mean	p90	max
CPU Long Tasks	0	13	13	17	50
CPU Long Tasks total duration	0 ms	1.588 s	1.752 s	2.639 s	6.820 s

6 metrics

Bytes over the wire, by content type.

Metric	min	median	mean	p90	max
Image size	0 b	8.7 MB	10.0 MB	14.6 MB	33.0 MB
HTML size	0 b	33.3 KB	70.6 KB	46.0 KB	6.7 MB
CSS size	0 b	90.6 KB	90.3 KB	91.0 KB	92.7 KB
Javascript size	0 b	1.3 MB	1.3 MB	1.3 MB	3.5 MB
Font size	0 b	296.2 KB	295.5 KB	297.9 KB	316.9 KB
Total size	58.6 KB	10.9 MB	12.8 MB	20.2 MB	34.6 MB

5 metrics

How many round trips the browser needed to build the page.

Metric	min	median	mean	p90	max
Image requests	0	24	25	42	45
CSS requests	0	4	4	4	6
Javascript requests	0	48	46	48	55
Font requests	0	10	10	10	11
Total requests	3	111	111	130	180

11 metrics

Everything that is not a 2xx is a detour: redirects cost time, 4xx/5xx are errors.

Metric	min	median	mean	p90	max
200 responses	2	101	100	120	167
202 responses	1	1	1	1	1
204 responses	3	5	5	5	6
206 responses	1	2	3	8	16
302 responses	1	1	1	1	1
308 responses	1	1	1	1	1
401 responseserrors	1	2	2	3	6
403 responseserrors	2	2	2	2	2
404 responseserrors	1	2	2	2	2
500 responsesserver errors	1	1	1	1	1
502 responsesserver errors	1	1	1	1	1