Built so business owners can read their site's report card — without hiring a developer.
P4 SiteCheck is a service of P4 One LLC, a New Jersey-based digital studio. We translate Google's website-health data into plain English you can act on the same day.
Why we built it
Google's PageSpeed Insights is powerful — and almost unreadable for a small business owner. "Largest Contentful Paint exceeded 4 seconds" doesn't tell you that your homepage is losing customers before it loads. We built P4 SiteCheck to bridge that gap: same engine, plain-English translation, weekly so you catch problems early instead of finding out from a customer.
The proof — sites we built, scanned by the same tool we sell you
We don't ship samples we don't own. Every site below is a real P4 build, scanned by the live SiteCheck engine. The scores are current.
Who builds it
P4 One LLC — a New Jersey-based digital studio. We design and build websites, monitor them with this product, and remediate when something needs fixing. SiteCheck is one product in a small ecosystem that covers the full lifecycle.
- P4 Web Studio — websites we design and build from scratch.
- P4 One Digital — full-service digital, including accessibility audits (informational reports — not legal certifications).
- P4 SiteCheck (you're here) — weekly automated monitoring.
- P4 Start — flat-fee starter sites for new businesses.
How to reach us
The fastest way is the free scan itself — run yours and we'll be in the picture. For anything else, p4one.com routes every question to the right place.
Run a free scan →