Shopify stores generated £14.6B in BFCM 2025 — a 27% increase. Peak: £5.1M per minute. Your store needs to be fast, stable, and conversion-optimised before the traffic arrives. We get it there.
Every performance weakness is exposed at scale. The fix list under load is different from the fix list under normal traffic.
At BFCM scale, that's thousands in lost revenue per slow second. Performance is revenue.
The customer doesn't come back. Resolution time matters less than prevention time.
Third-party scripts and apps that work in October fail in November under load. We audit the stack.
A desktop-optimised store loses two-thirds of its peak revenue. Mobile must be the priority — not the afterthought.
Lighthouse, Core Web Vitals, WebPageTest. Mobile + desktop. Documented baseline.
Performance-draining apps identified. Removal or replacement plan.
Simulated peak traffic. Concurrency-tested. Failure modes documented.
WebP/AVIF conversion. Lazy-loading. CDN config.
Critical render path optimised. GA4, Klaviyo, pixels — sequenced not stacked.
Designed and shipped if needed. Fast by default — no marketing-team-built drag.
Theme switches, discount activation, banner deploys — automated for the date.
Funnel tracking, attribution, GA4 events. So you can analyse the wins (and losses) properly.
Identifies all speed and conversion issues. Implementation is on you (or a separate engagement).
Audit + fixes + Launchpad. Most stores pick this tier.
Everything + campaign landing pages + real-time monitoring on BFCM day.
* SPACES LIMITED — 20 BFCM ENGAGEMENTS PER YEAR · BOOK BY OCTOBER FOR SAFETY
Eight weeks before your BFCM date is ideal. Six weeks is the minimum for the Sprint tier. Below four weeks we can only do an audit — there isn't time to ship fixes safely without risking the launch you are trying to protect.
Great — the audit will confirm it. Most stores that think they are fast have a 2–3 second mobile gap they do not see. We baseline pre/post Lighthouse and Core Web Vitals; if there is nothing to do, you only pay for the audit.
Yes — included in the Full BFCM Package. We watch real-time metrics, app health, and error rates from Friday morning through Monday night. Hot-fix capacity is reserved. We are on call for the entire four-day window.
Yes — included in the Full BFCM Package, or quoted separately. Campaign pages are built fast by default with section-based content blocks so the marketing team can update them without involving developers.
Shopify Plus checkout (built on Checkout Extensibility) is part of the audit. We test the full checkout flow under simulated load, including custom extensions, and pre-warm caches before the traffic hits.
BFCM Audit (one-off): £799. BFCM Performance Sprint (4 weeks): £3,999. Full BFCM Package (8 weeks + live monitoring): £8,999. App stack reviews and campaign page builds can be added to any tier.
The most common fixes are: critical CSS extraction, lazy-loading hero video, removing unused apps from the global script bundle, image format upgrades (WebP / AVIF), Liquid loop optimisations, and Cloudflare cache rules. Each fix is benchmarked pre/post.
We do not guarantee specific Core Web Vitals scores — they depend on your traffic mix and third-party scripts. What we guarantee is process: stat-significant before/after benchmarks, every fix tested in a staging environment first, and a rollback plan for every change shipped within 14 days of BFCM.
Send your store URL and BFCM date — we'll come back inside 48 hours with a readiness score and a recommended package.