{"id":390,"slug":"elementor-flexbox-containers-40pct-less-html","title":"Elementor own admission: Flexbox Containers ship 40% less HTML output than sections/columns","kind":"reference","scope":"business","status":"current","audiences":["claude-code","candid-team"],"topics":["core-web-vitals","wordpress","page-builders"],"reference_body":"**Claim:** Elementor's own engineering blog admits: *\"Containers produce **40% less HTML output** than sections and columns for the same layout.\"*\n\n**Source:** Elementor engineering blog (2023-2024).\n\n**Confidence:** Verified (vendor admission).\n\n**Why this is the punchiest data point:** Elementor itself documents that the **default markup** in pre-Container Elementor was bloated by 40%+. Sites built before Flexbox Containers (introduced 2022) are still on the old section/column system unless they've been migrated. The vendor has acknowledged the cost; the customer has paid it.\n\n**The deeper architectural problem:** Even with Flexbox Containers, page builders generate deeply nested `<div>` structures (5-7 layers around a single paragraph is typical — per Seismic Pixels and Anubiz analyses). Container adoption helps but doesn't eliminate the structural issue. See [[anubiz-elementor-500kb-2000-dom-elements]].","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"web-almanac-2024-cms-wordpress-perf-scores","title":"Web Almanac 2024: WordPress mobile CWV pass rate jumped 28% (2023) → 40% (2024); median mobile Lighthouse Perf 38","kind":"reference","scope":"business","link_type":"relates-to"}],"incoming":[{"slug":"anubiz-elementor-500kb-2000-dom-elements","title":"Anubiz Host: Elementor adds 500KB+ of CSS/JS to every page; simple pages can have 2000+ DOM elements","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"research-brief-case-against-page-builders","title":"Research brief: The Case Against Page Builders (piece 10 of 15)","kind":"reference","scope":"business","link_type":"relates-to"}]},"created_at":"2026-05-22T20:21:39.834Z","updated_at":"2026-05-22T20:21:39.834Z"}