1
At a glance the headline numbers for Document lifecycle (lab)
Lab document lifecycle: DOM interactive, DOM complete, load event.
384ms
DOM interactive
on the typical page
671ms
DOM complete
on the typical page
676ms
load event
on the typical page
185,146
sites measured
phone field data
The typical page reaches DOM interactive after 384ms in the lab.
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
2
Distribution & median CLS site count and median CLS at each level of document lifecycle (lab) — dom interactive
0.00
0.04
0.08
0.11
0.15
0
22769
45538
0
4–8
9–17
18–35
36–73
74–151
152–311
312–642
643–1327
1328–2742
2743–5664
>p98
Good (≤0.1)
Needs improvement
Poor (>0.25)
Site count
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
3
Passing CLS by document lifecycle (lab) — dom interactive which level passes the CLS most often
Document lifecycle (lab) — dom interactiveSitesPassing CLSCLS
0
583
95%
0.00
9–17
114
86%
0.00
18–35
1,513
84%
0.00
36–73
7,509
84%
0.00
74–151
23,531
89%
0.00
152–311
45,538
90%
0.00
312–642
45,134
90%
0.00
643–1327
33,249
89%
0.00
1328–2742
17,561
88%
0.00
2743–5664
6,721
87%
0.00
>p98
3,690
88%
0.00
Good
Needs Improvement
Poor
Faded rows: under 100 sites
Document lifecycle (lab) — dom interactive 384ms. p75 858ms. p99 12.4s. At the low end (0ms): CLS 0.00. At the high end (>p98): CLS 0.00. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
4
Distribution & median CLS site count and median CLS at each level of document lifecycle (lab) — dom complete
0.00
0.04
0.08
0.11
0.15
0
26335
52670
0
5–11
12–23
24–50
51–107
108–229
230–493
494–1059
1060–2277
2278–4893
4894–10516
>p98
Good (≤0.1)
Needs improvement
Poor (>0.25)
Site count
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
5
Passing CLS by document lifecycle (lab) — dom complete which level passes the CLS most often
Document lifecycle (lab) — dom completeSitesPassing CLSCLS
0
1,449
92%
0.00
12–23
185
89%
0.00
24–50
1,410
91%
0.00
51–107
4,541
91%
0.00
108–229
17,845
90%
0.00
230–493
44,990
90%
0.00
494–1059
52,670
89%
0.00
1060–2277
36,554
88%
0.00
2278–4893
16,497
86%
0.00
4894–10516
5,327
84%
0.00
>p98
3,674
86%
0.00
Good
Needs Improvement
Poor
Faded rows: under 100 sites
Document lifecycle (lab) — dom complete 671ms. p75 1.4s. p99 24.1s. At the low end (0ms): CLS 0.00. At the high end (>p98): CLS 0.00. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
6
Distribution & median CLS site count and median CLS at each level of document lifecycle (lab) — load
0.00
0.04
0.08
0.11
0.15
0
26293
52586
0
5–11
12–23
24–50
51–107
108–230
231–494
495–1061
1062–2281
2282–4903
4904–10541
>p98
Good (≤0.1)
Needs improvement
Poor (>0.25)
Site count
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
7
Passing CLS by document lifecycle (lab) — load which level passes the CLS most often
Document lifecycle (lab) — loadSitesPassing CLSCLS
0
1,468
92%
0.00
12–23
185
89%
0.00
24–50
1,402
91%
0.00
51–107
4,522
91%
0.00
108–230
17,855
90%
0.00
231–494
44,714
90%
0.00
495–1061
52,586
89%
0.00
1062–2281
36,689
88%
0.00
2282–4903
16,644
86%
0.00
4904–10541
5,404
84%
0.00
>p98
3,673
86%
0.00
Good
Needs Improvement
Poor
Faded rows: under 100 sites
Document lifecycle (lab) — load 676ms. p75 1.4s. p99 24.1s. At the low end (0ms): CLS 0.00. At the high end (>p98): CLS 0.00. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
8
Why this matters for the Core Web Vitals, and where to start fixing it
The document lifecycle is the old way of measuring pages, and it still says useful things. DOM interactive marks the HTML fully parsed. DOM complete waits for the subresources. The load event is the official end of loading, and everything that listens for it (analytics, widgets, third-party tags) starts there.
A long gap between interactive and complete means resource weight, not markup. These milestones do not map onto user experience the way the vitals do, which is why they were replaced. But a page with a slow lifecycle does not produce fast vitals.
How does this affect the Core Web Vitals?
Document lifecycle (lab) correlates with the CLS. DOM interactive separates passing sites from failing sites the most. Where the DOM interactive is low, 95% of sites pass the CLS. Where it is high, 88% do. The decline is gradual. There is no point where sites suddenly start failing.
Chrome field data from 189,915 sites, representing millions of real page loads.
How we measured.