Report: WordPress powers 25% of all websites, 58.7% of sites with an identifiable CMS
WordPress now powers 25% of the Web — One in four websites is now powered by WordPress. — Today is a big day for the free and open-source content management system (CMS).
Context & Ripple Effects
The quarter-of-the-web milestone lands mid-arc for an open-source project that keeps compounding: by 2018, an analysis put WordPress at 30% of the top 10 million websites — nearly ten times nearest rival Joomla's share — confirming the 25% report was a floor, not a peak.
Scale cuts both ways. The same dominance that attracts publishers also makes WordPress a single point of failure, which is why the later record reads as a security story: the release that gave the CMS powering a third of all websites cryptographically-signed updates, through to veterans and the Linux Foundation building the FAIR federated update network to harden its infrastructure.
First-order effects
- Joomla and the other identifiable-CMS rivals are now competing against a default choice — at 58.7% of sites with a known CMS, buyers pick WordPress unless they have a reason not to.
- Hosting providers and theme/plugin developers gain a market where one platform sets the demand curve for every adjacent service.
Second-order effects
- Dominance forces the project into vertical plays to defend it — the Google-backed Newspack publishing platform for small and medium-sized news outlets is WordPress converting its installed base into a product line.
- Every critical flaw patched on a 25%-of-the-web codebase is effectively a web-wide incident, pushing Automattic toward distribution mechanisms like signed updates rather than relying on site owners to patch manually.
Third-order effects
- If the share curve holds — 25% in 2015, 30% by 2018 — web infrastructure consolidates around a single open-source CMS, making its governance and update pipeline matters of internet-wide resilience, which is precisely what the later FAIR federated update network attempt addresses.
The trend: Open-source content management is consolidating around one dominant platform whose scale turns its own security and governance decisions into de facto standards for the web.