A theme is not a growth system. Growlith engineers Web Core — edge architecture, a Core Web Vitals SLA, a composable stack — fast enough to feel expensive.
Most websites look good and still lose the people who arrived. Poor Core Web Vitals, slow loads, fat media, weak caching, rigid architecture — technical limits that quietly tax SEO rankings and paid conversion. The cost is not aesthetic. It is revenue.
This is an infrastructure problem
Speed-tax autopsy
Set the sliders to your live site. This is not a traffic forecast — it is the conversion you leave on the table versus a sub-second Core, using a conservative decay from 3.4% CR at 0.8s LCP.
Monthly sessions
All devices, all channels
Current LCP
Field data, P75 — Search Console or RUM
Average order / lead value
What a converted session is worth
The ledger
CR at 0.8s LCP3.40%
CR at 3.4s1.27%
Conversion given back63%
Drag per month
$307K
Leak per year
$3,688K
That is traffic you already paid for — SEO, paid, email — converting worse because the chassis is slow. Every Growlith core audit opens with this ledger.
LCP over two seconds, CLS that jumps the buy button, INP that makes taps feel broken. Google ranks it. Buyers feel it. The report is red and the funnel is quieter than the design looked in Figma.
Looks premium. Scores like a brochure.
Hero video autoplays, three tag managers fire before first paint, and the homepage is 4.8MB because nobody owned the critical path. Every extra second is a bounce you already paid to acquire.
Paid traffic lands. Half of it leaves.
Uncompressed JPEGs, no AVIF, no priority LCP image, no srcset. The most expensive pixels on the page are also the slowest — and they sit in front of the offer.
A 2.4MB hero fighting the conversion.
Origin does the work on every request. No edge, no stale-while-revalidate, no regional PoPs. A sale in Sydney waits on a server in Virginia. Cache hit rate is a hope, not a number.
Fast in the office. Dead on 4G.
A theme, a page builder, a plugin maze. Adding a market, a locale or a new offer means a six-week ticket. The site cannot take the shape of the business — so the business shapes itself around the CMS.
The roadmap waits on the website.
No schema registry, no edge SSR, no first-party CAPI, no RUM. SEO cannot index what it cannot parse. Paid cannot attribute what the pixel missed. Conversion is a guess dressed as analytics.
SEO and ads paying a tax the stack invented.
The brochure site
A design asset the funnel works around
The Growlith Web Core
Growth infrastructure the machine runs on
The brochure site
A design asset the funnel works around
The Growlith Web Core
Growth infrastructure the machine runs on
The brochure site
A theme restyle sold as a rebuild
The Growlith Web Core
Edge-rendered Next.js, in your repo, owned by you
The brochure site
Core Web Vitals as a Lighthouse screenshot
The Growlith Web Core
LCP ≤ 0.8s · CLS ≤ 0.05 · INP ≤ 120ms — as an SLA
The brochure site
Uncompressed heroes and a CDN afterthought
The Growlith Web Core
AVIF pipeline, priority LCP, smart invalidation
The brochure site
Origin-bound WordPress on a shared box
The Growlith Web Core
Edge cache 99.2% hit · NYC, LDN, SYD, DIFC PoPs
The brochure site
A page builder that fights every new market
The Growlith Web Core
Composable: Sanity + Shopify + analytics instrumentation
The brochure site
A design asset the growth team works around
The Growlith Web Core
Growth infrastructure the other five engines run on
What this is not
A Squarespace restyle. A Webflow template. A WordPress theme swap with a speed plugin taped on. If the work does not live in your repo, on the edge, with vitals as a contract, it is decoration. Decoration does not compound.
Not four vendors. Four systems in one Web Core — edge, vitals, media and a stack that other engines can plug into.
4/4 capabilities online
1// capability 01 — edge architecture2export default defineWebCore({3runtime: "edge", framework: "next.js",4regions: ["NYC", "LDN", "SYD", "DIFC"],5cache: { sMaxAge: 3600, staleWhileRevalidate: 86400 },6render: "ssr-at-pop",7})
Runtime chassis
Render where the buyer is. Cache what does not change.
Headless Next.js on the edge — SSR at the PoP, ISR for money pages, stale-while-revalidate so origin almost never wakes. Four bureaus, four regions: NYC, London, Sydney, DIFC. The page is already there when the request arrives.
What ships
How it feeds the machine
Edge is the floor the other three stand on. Vitals, media and the composable stack are wasted if every request still travels to origin.
99.2%
Edge cache hit rate
Growlith turns those four capabilities into a single Web Core — architected, built, optimized, instrumented, monitored and scaled. A foundation the rest of the machine can stand on. Owned by you.
Six stages · one operating system
Information architecture, conversion paths, edge topology and the composable planes — content, commerce, measurement — mapped before a component is drawn. We design the chassis the other engines will plug into, not a page list.
Ships — IA, edge map, stack decision, vitals budget, migration plan
Next.js on the edge, design system in your repo, Sanity and Shopify wired as modules. Editors get preview. Engineering gets types. Nothing ships as a theme. Everything ships as infrastructure you own.
Ships — App Router, design tokens, CMS schemas, commerce hooks, CI
Critical path cut to the bone: AVIF heroes, font subsetting, JS budgets, priority LCP, no layout shift. The Core Web Vitals SLA is earned here — then locked in CI so it cannot quietly regress next quarter.
Ships — Media pipeline, font/JS budgets, LCP preload, CI vitals gates
RUM on every money URL. Server-side CAPI on first paint. Schema registry. Consent-first first-party data. SEO and paid inherit a site they can actually measure — not a pixel that iOS ate.
Ships — RUM, CAPI, GA4, schema registry, consent mode v2
P75 vitals, cache hit, error budget and conversion by template — in the same control room as media and SEO. Regressions page a principal, not a plugin changelog. The core is operated, not launched.
Ships — Vitals dashboard, cache telemetry, error budget, weekly ops
New markets, locales, templates and offers attach to the same chassis. pSEO clusters, paid landing systems and CRM journeys plug in without a rebuild. The site grows with the machine — that is the entire point.
Ships — Locale expansion, template OS, engine sockets, playbooks
01
0.61s
LCP — P75
across managed Web Cores
02
0.02
Cumulative layout shift
field data, rolling 30-day
03
99.2%
Edge cache hit
NYC · LDN · SYD · DIFC
04
214
Cores deployed
production, client-owned repos
Verified deployments
A search-ready, high-performance website as the foundation for organic growth.
Request the auditA performance-focused travel platform designed to scale with demand — not fight it.
Request the auditA core fast enough that high-intent trekking traffic actually reaches the offer.
Request the auditA website is not a design asset. It is the conversion surface every other dollar — SEO, paid, CRM — has to travel through. Web Core is how Growlith stops that surface from being the bottleneck.
The questions serious operators ask before they let anyone rebuild the surface every other dollar has to travel through. If yours isn't here, any bureau desk answers within one business day.
contact@growlithacademy.comA website is a design artefact. A Web Core is conversion infrastructure: edge-rendered Next.js, a Core Web Vitals SLA, a media pipeline and a composable CMS/commerce stack, shipped in your repo and operated as Engine 03. Agencies deliver a theme. We deliver a chassis the rest of the growth machine can plug into.
LCP ≤ 0.8s, CLS ≤ 0.05, INP ≤ 120ms — held on field data (RUM P75), not a Lighthouse screenshot from a founder's laptop. CI fails the build if lab vitals regress. P75 is reviewed weekly in the same control room as CAC and crawl efficiency. If we miss, we fix — it is a contract, not a talking point.
Headless. Next.js on the edge, Sanity as the content plane, Shopify where commerce is live. We will migrate a WordPress or Webflow property — we will not extend a page-builder maze and call it a core. If the work does not live in your repo, it is decoration.
You do. Code in your GitHub, content in your Sanity, commerce in your Shopify, analytics in your GA4. Design tokens and components ship as a system you keep. If we stop working tomorrow, the core keeps converting. That is the entire point.
A focused marketing core — IA, edge, vitals, CMS, instrumentation — typically stands in 6–10 weeks. Complex commerce or multi-locale (including ar-ae) lands in a quarter. We do not do six-month mystery rebuilds. Ninety days is the engagement floor because compounding needs a runway.
Both, because they are the same surface. Sub-second LCP and stable CLS lift rankings and conversion on traffic you already buy. Schema, edge SSR and clean URLs are the chassis programmatic SEO needs. Server-side CAPI on first paint is what paid media attribution has been missing. Engine 03 is how Engines 01 and 02 stop leaking.
Next.js App Router on the edge, Sanity, Shopify Storefront where needed, first-party analytics and Conversions API, RUM, a typed design system, AVIF media pipeline. Regional PoPs in NYC, London, Sydney and DIFC. We will meet a stack you already own if it can hold the SLA — we will not pretend a page builder can.
Architect → build → optimize → instrument → monitor → scale. Ninety days to stand the core up. After that, rolling 30-day — because vitals, cache and templates are operated, not launched. Ignition (core + one more engine), Momentum (core + three more) or Full Machine (all six). A principal replies within one business day of qualification.
High-ticket means high-intent — on both sides. Four questions route you to the right bureau pod — then a direct line to the Academy Team, if you'd rather not wait.
STEP 01 / 05
Your website is not a design asset. It is growth infrastructure — the surface every SEO dollar, every ad dollar and every lifecycle flow has to travel through. One 30-minute core audit. No decks, no juniors, no obligation.