We Engineer Speed You Can Verify
Architecture-first performance engineering that delivers 90-100 PageSpeed scores — consistently, repeatably, and provably.
We don't install caching plugins and call it optimization. We re-engineer how your site loads from the ground up: eliminating render-blocking resources, inlining critical CSS, self-hosting fonts, and shipping zero unnecessary JavaScript. Every technique is measurable. Every result is verifiable.
Verifiable Results. No Exceptions.
In an industry where screenshots pass as proof, we chose a harder standard: give clients live URLs and let them test for themselves.
Most performance agencies show you a green score in a screenshot and move on. The problem? Screenshots can be cached, cherry-picked, or fabricated. You have no way to verify the result is real, current, or repeatable.
We built PageSpeed.Biz around one uncomfortable truth: if a client can't verify it themselves, it doesn't count.
Every project we deliver comes with a live URL you can test on Google PageSpeed Insights right now. Not last month's cached result. Not a staging environment. The actual production site, performing at the scores we promised.
Our Proof Standard
- Live production URLs — test anytime
- Direct Google PageSpeed Insights links
- Scores hold on repeat testing, not just once
- Performance guarantee with free remediation
- Zero trust required — verify it yourself
Engineering Discipline, Not Quick Fixes
Six principles that separate architecture-first optimization from the plugin-and-pray approach most agencies use.
Zero Unnecessary JS
We ship pages with zero JavaScript where possible. No jQuery. No analytics bloat on load. Every kilobyte must justify its existence against the performance budget.
Inlined Critical CSS
No external stylesheets blocking render. Critical CSS is extracted and inlined in the document head. Below-fold styles load asynchronously or not at all until needed.
Self-Hosted Everything
Fonts, icons, analytics — all self-hosted. Zero third-party DNS lookups during critical render path. No Google Fonts API calls. No CDN dependency chains slowing paint.
Verifiable by Design
Every project ships with live PageSpeed Insights links. Run the test yourself, anytime. Our results are not a point-in-time screenshot — they are persistent, testable, and guaranteed.
Systematic, Not Ad-Hoc
30 documented techniques across 7 pillars. Every optimization follows a proven playbook, not guesswork. We apply the same rigorous methodology to every project regardless of scale.
Architecture Over Plugins
Caching plugins mask slow architecture. We fix the architecture. Static-first rendering, edge caching, image pipelines, and resource hints — structural changes that don't degrade over time.
30 Techniques. 7 Pillars. One Standard.
Every optimization we perform follows a structured playbook refined across real production deployments — not theoretical best practices from a blog post.
Our architecture-first approach means we evaluate and optimize every layer of how your site delivers content to the browser. Not just the output — the entire delivery pipeline.
From the initial DNS lookup to the final paint event, each step is measured, optimized, and documented. The 30 techniques in our playbook target specific bottlenecks across 7 pillars — and every technique has a measurable impact on Core Web Vitals.
The 7 Optimization Pillars
Performance Is a Ranking Signal
Google doesn't just recommend fast sites — it measures and penalizes slow ones. Speed impacts every metric that determines your online success.
SEO Rankings
Core Web Vitals are a confirmed Google ranking factor. Sites that fail CWV assessment face ranking suppression against faster competitors in the same niche.
Crawl Efficiency
Faster response times mean Googlebot can crawl more pages within the same crawl budget. For large sites, this directly translates to more indexed pages and fresher content.
User Trust
53% of users abandon sites that take longer than 3 seconds to load. A fast site signals professionalism, reliability, and attention to detail before a single word is read.
Conversion Impact
Every 100ms of load time improvement can increase conversions by up to 8%. For e-commerce sites, that translates directly to revenue. Speed is not a luxury — it's margin.
User Experience
Zero layout shift. Instant interactivity. No jank. When content appears fast and stays stable, users engage longer, scroll deeper, and come back more often.
Mobile Performance
Over 60% of web traffic is mobile. Mobile devices have constrained CPU and bandwidth. Optimization isn't optional — it's the difference between usable and unusable on mid-range devices.
A Focused Team. One Mission.
PageSpeed.Biz is a specialized performance engineering practice powered by ITULIS — built for one purpose: making websites measurably fast.
Powered by ITULIS
We're not a large agency with a performance department bolted on. PageSpeed.Biz is a dedicated practice — a team of engineers who think about render paths, resource loading, and Core Web Vitals every single day.
Backed by ITULIS, we combine deep web development expertise with specialized performance engineering to deliver results that larger generalist agencies simply cannot match.
Our focus is intentionally narrow. We don't design logos, run ad campaigns, or build mobile apps. We make websites fast. Measurably, verifiably, repeatably fast.
Islands architecture for zero-JS pages with selective hydration only where needed.
Deep optimization for existing WordPress, Shopify, and custom-built sites without rebuilding.
LCP, FID/INP, CLS — targeted optimization for the metrics Google actually measures.
Ongoing monitoring with guaranteed score thresholds — if it drops, we fix it free.
Ready to Engineer Real Speed?
Get a free architecture audit. We'll analyze your site's performance pipeline and show you exactly what's holding your scores back — with data, not guesswork.