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Advanced Custom Fields (ACF®)

slug: advanced-custom-fields

WordPress plugin by WP Engine · detected on 384 sites in our index (7.21% of WordPress sites scanned)

ACF helps customize WordPress with powerful, professional and intuitive fields. Proudly powering over 2 million sites, WordPress developers love ACF.

384
Sites detected
7.21%
Market share
of our WP index
#31
Rank
among indexed plugins
2026-05-22
Last detected

Where Advanced Custom Fields (ACF®) sits in the WordPress plugin ecosystem

Advanced Custom Fields (ACF®) is the #31 most-detected WordPress plugin in our scan index of 5,328 sites — appearing on roughly 7.21% of WordPress sites we've fingerprinted. Most sites running Advanced Custom Fields (ACF®) are hosted on Pantheon (69% of identified hosts). The most common companion plugin is Yoast SEO – Advanced SEO with real-time guidance and built-in AI, present on 79% of Advanced Custom Fields (ACF®) sites. The most frequent theme is unified.

Every data point here comes from actual scans of public WordPress sites — not vendor case studies or curated showcases. We don't accept submissions; everything you see is detected automatically when a site is scanned through the tool.

Plugins commonly used with Advanced Custom Fields (ACF®)

From co-occurrence analysis across sites running Advanced Custom Fields (ACF®) in our index.

Themes commonly running Advanced Custom Fields (ACF®)

Top themes on sites using this plugin.

  • unified6% of Advanced Custom Fields (ACF®) sites · 18 sites
  • divi2% of Advanced Custom Fields (ACF®) sites · 7 sites
  • Astra1% of Advanced Custom Fields (ACF®) sites · 4 sites
  • GeneratePress1% of Advanced Custom Fields (ACF®) sites · 4 sites
  • Hello Elementor1% of Advanced Custom Fields (ACF®) sites · 4 sites
  • airfleet-lightyear1% of Advanced Custom Fields (ACF®) sites · 3 sites

Hosting providers running Advanced Custom Fields (ACF®)

Limited to sites where we identified the hosting provider.

Sites using Advanced Custom Fields (ACF®)

Most-recently-scanned sites detected with this plugin.

How we detect Advanced Custom Fields (ACF®)

Five-vector detection — /wp-content/plugins/advanced-custom-fields/ asset paths, /wp-json/ REST API namespaces, HTML signature patterns, sitemap XML comments, and asset-probe HEAD requests against the top-100 popular plugins on wordpress.org. Each detected plugin carries provenance pills showing which sources corroborated it — cross-vector matches indicate high-confidence detections. More on how detection works.

Reviewed by Matt Hall · founder of Scepter Marketing · 10+ years building WordPress sites
·
Last reviewed: 2026-05-22
·How we detect this →

Data comes from real-time scans of public WordPress sites — not vendor case studies or curated showcases. Every claim on this page traces back to a specific detection in our scan corpus, observable via our methodology. Affiliate links are disclosed per the affiliate disclosure.