Long Animation Frame work on Wix sites
5.6% of audited sites (218) record over 250ms of work inside Long Animation Frames, pushing median field INP to 48ms (100% good INP) versus 38ms (99% good INP) under 80ms.
30.3% of Wix sites use 80 to 130ms of LoAF work Long Animation Frame work, and 100% of those sites have a good INP, against 100% of all Wix sites.
INP pass rate
Sites with 80 to 130ms of LoAF work Long Animation Frame work have a good INP most often: 100%, against 100% of all Wix sites. Sites with under 80ms of LoAF work LoAF duration have it least often, at 99%.
Long Animation Frame work usage
Under 80ms of LoAF work is the most used: 51.4% of Wix sites. 80 to 130ms of LoAF work is 30.3% of Wix sites.
Long Animation Frame work per framework
On React, 51% of sites use under 80ms of LoAF work Long Animation Frame work, and 100% of React sites have a good INP, against 100% of all sites.
React 3,883 sitesUnder 80ms LoAF work 51%80 to 130ms LoAF work 30%130 to 250ms LoAF work 13%100%Long Animation Frame work or the framework
Does the framework explain the Long Animation Frame work difference?
On React, 100% of sites with 80 to 130ms of LoAF work Long Animation Frame work have a good INP, against 99% of React sites with under 80ms of LoAF work. Within React, sites with 80 to 130ms of LoAF work and under 80ms of LoAF work have a good INP about equally often.
Why Long Animation Frames pinpoint real INP bottlenecks
Unlike classic Long Tasks, the Long Animation Frames API captures the full rendering update alongside script execution, exposing forced synchronous reflows and expensive style recalculations. Across 1,996 sites (51.4%) with under 80ms of LoAF work, 99% pass field INP at an 38ms median, compared with 100% (48ms median) on the 5.6% (218) exceeding 250ms.
Understanding Long Animation Frame work
Eliminate synchronous layout reads after DOM writes (forced reflows) and break long script evaluation tasks into smaller chunks. Across all audited sites, 51.4% stay under 80ms of LoAF work (99% good INP, 38ms median) versus 5.6% above 250ms (100% good INP, 48ms median).
By Arjen Karel · 5,621 crawled Wix sites (728 with desktop Chrome field data, 3,884 sites with Long Animation Frame work, October 2026). How we measured.