Core Web Vitals for Local Business Websites
What LCP, CLS, and INP actually measure, why field data beats lab data, and the engineering budget we hold every build to.
Why this site exists
Most agencies apply SEO advice the moment they read it. We don't. Every technique we consider — a schema type, a performance optimization, a markup pattern — is implemented here, on our own property, and measured against Google Search Console, Core Web Vitals, and accessibility tooling before it's allowed anywhere near a client's website. This site is both the laboratory and the published record of what we learn.
Research
Evidence-based engineering notes. No speculation, no tricks.
Structured Data That Earns Its Keep
The JSON-LD types Google documents and rewards — LocalBusiness, Organization, FAQ, Breadcrumb — and the ones that quietly do nothing.
Engineering for AI Search & Assistants
How AI crawlers read a website, why semantic HTML is the whole ballgame, and what llms.txt does and doesn't do today.
Technical SEO Foundations
Crawlability, canonicals, sitemaps, redirects, and response codes — the unglamorous layer that decides whether anything else matters.
Accessibility as an Engineering Discipline
WCAG as a build standard, not an afterthought: semantic structure, contrast, keyboard paths, and why accessible sites rank and convert better.
The research pipeline
Every change earns its place. Full methodology →
01
Research & verify
Official documentation first — Google Search Central, web.dev, W3C, WHATWG, Schema.org. One source is never enough.
02
Test here, measure
Candidate techniques ship to this site under a single hypothesis, then we watch Search Console, Core Web Vitals, and validation tooling.
03
Graduate to standard
Only measured, documented wins become BYHS Engineering Standards — the baseline every production website is built to.