Detailed summary for https://stf.xelta.ai tested 214 pages at 2026-09-14 09:35:05

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

Tested 2026-09-14 09:35:05 using Chrome (runtime settings)

What stands out2 errors during testing → errors pageTotal Blocking Time is 956 ms, poor (good is 200 ms or less)10 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.

Coach scores

4 metrics

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

Metric	min	median	mean	p90	max
Coach score	66	74	74	79	90
Coach performance score	60	75	75	82	100
Privacy score	65	72	71	72	89
Best Practice score	57	80	80	91	98

Web Vitals & load timings

18 metrics

The user experience milestones, plus the classic navigation timings.

Metric	min	median	mean	p90	max
Largest Contentful Paint	208 ms	2.010 s	2.530 s	4.692 s	11.968 s
First Contentful Paint	208 ms	950 ms	1.095 s	1.520 s	11.968 s
First Paint	208 ms	950 ms	1.095 s	1.520 s	11.968 s
First Paint	208 ms	950 ms	1.095 s	1.520 s	11.968 s
Cumulative Layout Shift	0	0.0019	0.3057	0.8742	1.0089
Total Blocking Time	0 ms	956 ms	1.054 s	1.769 s	4.358 s
Max Potential First Input Delay	0 ms	294 ms	326 ms	516 ms	1.303 s
Fully Loaded	219 ms	8.699 s	8.801 s	10.642 s	19.191 s
backEndTime	50 ms	368 ms	472 ms	628 ms	11.605 s
domContentLoadedTime	189 ms	1.031 s	1.174 s	1.870 s	12.211 s
domInteractiveTime	189 ms	896 ms	1.017 s	1.516 s	12.200 s
domainLookupTime	0 ms	4 ms	5 ms	11 ms	47 ms
frontEndTime	42 ms	777 ms	1.003 s	1.718 s	9.332 s
pageDownloadTime	1 ms	26 ms	187 ms	536 ms	834 ms
pageLoadTime	190 ms	1.400 s	1.661 s	2.538 s	12.394 s
redirectionTime	0 ms	0 ms	24 ms	88 ms	1.329 s
serverConnectionTime	0 ms	26 ms	29 ms	47 ms	283 ms
serverResponseTime	32 ms	460 ms	579 ms	1.052 s	11.548 s

Visual metrics

6 metrics

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

Metric	min	median	mean	p90	max
First Visual Change	33 ms	900 ms	1.013 s	1.367 s	11.900 s
Speed Index	202 ms	2.090 s	2.229 s	3.106 s	13.228 s
Visual Complete 85%	200 ms	2.906 s	3.431 s	5.867 s	14.700 s
Visual Complete 95%	233 ms	3.836 s	4.099 s	7.400 s	14.700 s
Visual Complete 99%	233 ms	4.586 s	4.810 s	7.600 s	14.833 s
Last Visual Change	233 ms	6.104 s	6.296 s	8.100 s	16.967 s

CPU

2 metrics

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

Metric	min	median	mean	p90	max
CPU Long Tasks	0	14	14	19	66
CPU Long Tasks total duration	0 ms	1.804 s	1.926 s	2.950 s	8.078 s

Page weight

6 metrics

Bytes over the wire, by content type.

Metric	min	median	mean	p90	max
Image size	0 b	494.5 KB	2.5 MB	5.6 MB	7.6 MB
HTML size	0 b	29.6 KB	37.4 KB	42.3 KB	118.6 KB
CSS size	0 b	90.4 KB	89.3 KB	91.7 KB	93.0 KB
Javascript size	0 b	1.3 MB	1.3 MB	1.4 MB	3.6 MB
Font size	0 b	309.8 KB	305.7 KB	315.8 KB	317.6 KB
Total size	12.7 KB	3.3 MB	6.1 MB	10.8 MB	19.7 MB

Requests

5 metrics

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

Metric	min	median	mean	p90	max
Image requests	0	27	28	43	46
CSS requests	0	2	2	2	4
Javascript requests	0	50	48	51	58
Font requests	0	11	11	11	11
Total requests	3	114	112	129	214

Response codes

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	3	108	105	122	209
202 responses	1	1	1	1	1
204 responses	4	4	4	4	5
206 responses	1	2	3	8	16
302 responses	1	1	1	1	1
308 responses	1	1	1	1	1
401 responseserrors	1	1	2	2	3
404 responseserrors	1	6	5	6	6
500 responsesserver errors	1	1	1	1	1
502 responsesserver errors	1	1	1	1	1
503 responsesserver errors	1	1	1	1	2