Sub-400ms LCP and 100/100 PageSpeed, or You Pay $0.
Leantric is a senior web performance consultancy for revenue-critical B2B and commerce sites. We diagnose asynchronously, refactor render debt, and put the guarantee in writing before work starts.
Get Your Asynchronous Audit arrow_forwardPerformance Delta Analysis
DOM Bloat
Standard builders output 2,500+ unoptimized nodes. We restructure the tree to ~400 nodes, bypassing parser delays.
Script Tax
Third-party scripts monopolize the main thread. We implement strict async/defer loading and web workers.
Revenue Leakage
Amazon calculated a 1% sales drop for every 100ms of latency. Eradicate technical debt to recover lost GMV.
The Anatomy of a Slow Site
Most slow pages are not visually complex. They are structurally noisy: nested builders, duplicated wrappers, blocking scripts, and hydration work the buyer never sees.
Optimization Architecture
Methodology & Workflow
Asynchronous Workflow
We eliminate meeting bloat. Communication operates strictly through annotated Loom videos, dense PDF technical specs, and async task boards. You get precision engineering without the calendar friction.
Zero-Risk Guarantee
"If we do not hit the agreed Core Web Vitals green zone... you pay $0."
The $0 Guarantee Contract
The guarantee is not a slogan. It is scoped against agreed URLs, agreed device/network conditions, and public Lighthouse/PageSpeed evidence captured before and after implementation.
Sub-400ms LCP and 100/100 PageSpeed on the agreed benchmark pages, unless a third-party business dependency is explicitly excluded.
Before/after traces, lab screenshots, Core Web Vitals notes, and a concise technical changelog delivered asynchronously.
If the agreed target is missed after remediation, you owe $0 for the performance engagement. No vague credit, no retainer trap.
Common Queries
Technical answers to the questions engineering and marketing teams ask before engaging.
A: Our contract is completely binary and built on risk-reversal. Before writing a single line of code, we agree on the specific benchmark pages, testing environments (simulated 4G mobile via Google PageSpeed Insights and WebPageTest), and the exact metrics: sub-400ms LCP and a 100/100 Core Web Vitals score. We do not take upfront retainers. You receive the completed performance refactor on a staging branch. If the verified public Lighthouse run does not hit the agreed green zone, our invoice is voided. You pay $0.
A: The initial asynchronous technical audit is delivered within 24 to 48 hours. The actual engineering refactor typically takes 5 to 10 business days, depending on your architectural debt and database volume. Because we operate strictly asynchronously, there is zero calendar friction for your team. You will not be dragged into status meetings; instead, you receive comprehensive Git Pull Request summaries, before/after metric comparisons, and clear Loom walkthroughs.
A: For the audit phase — strictly no. We only need your public URL to gather telemetry via CrUX, Lighthouse, and network waterfall analysis. For the implementation phase, we never touch your live production environment. We work via structured Git workflows (GitHub / GitLab / Bitbucket branches) or on an isolated staging server. All changes are delivered as a clean Pull Request with zero downtime, ready for your internal team to review and merge.
A: Marketing pixels (Meta, HubSpot, GA4) and payment SDKs (Stripe) are the #1 cause of Total Blocking Time (TBT). We do not simply delete your business-critical tracking. Instead, we implement precision script isolation: utilizing techniques like Web Workers (Partytown), strategic async/defer execution, and DOM-event triggers (loading scripts only on user interaction). Your marketing team keeps 100% of their analytics data; your users get instant, zero-bloat page rendering.
A: Our core engineering expertise is deep-layered WordPress, custom WooCommerce e-commerce architectures, and high-performance PHP/JS web applications. Unlike generalist agencies that claim to do everything, we specialize in high-revenue ecosystems where heavy database queries, visual builder bloat (Elementor/Divi), and legacy theme dependencies destroy conversion rates. If your site is revenue-critical and measurably slow, submit your URL for a feasibility review.