THE COST OF GOING DOWN
On your busiest day, every minute offline is money gone.
$9,000median cost per minute of an enterprise outageSource: ITIC 2025 survey
5–10×normal revenue per minute during Black Friday peaksSource: StatusApp downtime research, 2026
$775klost by J.Crew in five hours of Black Friday downtime (2018)Source: Business Wire
$11mlost by Costco in 24 hours of Thanksgiving downtime (2019)Source: Business Wire
And it doesn’t stop when the site comes back: wasted ad spend, abandoned baskets, customers who buy from a competitor instead, and support queues that last for days.
DOWNTIME COST CALCULATOR
What would an outage cost you this Black Friday?
Use last year’s peak-hour numbers from your analytics. Revenue per minute = visitors per minute × conversion rate × average order value.
Estimated lost sales
£61,200
£1,020 per minute · before lost ad spend and customers
Protect that revenue — free audit →
WHY SITES CRASH ON PEAK DAYS
It’s rarely just “too much traffic”.
01
Search & filters overload the database
Layered navigation and search queries multiply under load — often the first thing to fail.
02
No autoscaling (or it scales too slowly)
Servers sized for a normal Tuesday can’t absorb a 10× spike in minutes.
03
Cache misses & personalisation
Full-page cache bypassed by carts, sessions or promo banners sends every request to PHP.
04
Checkout & payment bottlenecks
Session locking, stock reservation and gateway timeouts cause abandoned baskets.
05
Third-party scripts & integrations
Slow ERP, stock or tag scripts drag the whole site down.
06
Bots, scrapers & card-testing
Automated traffic competes with real customers for capacity.
HOW WE KEEP YOU ONLINE
20 years of peak days. Zero peak-day outages.
Our engineers have transformed high-traffic retailers since the early days of ecommerce. We test your real customer journeys at real peak volume — then fix what breaks before your customers find it.
01
Audit
Hosting, caching, database and code reviewed against your peak forecast.
02
Load test
Realistic scripts — browse, search, filter, add to basket, checkout — at 2–3× expected peak.
03
Fix & scale
Caching, queries, autoscaling, CDN and WAF tuned. Retested until it holds.
04
War room
24/7 engineers watching live from Black Friday to Cyber Monday, ready to act in seconds.
20+years keeping stores online
0peak-day outages for clients
9×peak traffic handled for one retailer
24/7war-room cover on peak days
PEAK SEASON PACKAGES
Fixed prices. Ready before code freeze.
50% OFFPeak season offer — plus an extra 20% off with code EXTRA20
READINESS AUDIT
Know your risks
£1,790
£895 one-off
fixed price
✓Hosting, cache & DB review
✓Peak capacity estimate
✓Top risks ranked
✓Fix plan & costs
LOAD TEST + FIX
Most popular
£5,390
£2,695 one-off
fixed price
✓Everything in Audit
✓Realistic load test at 2–3× peak
✓Performance fixes applied
✓Retest & sign-off report
✓WAF & bot rules
PEAK WAR ROOM
Black Friday → Cyber Monday
£3,590
£1,795 one-off
fixed price
✓24/7 engineers on watch
✓Live dashboards & alerts
✓Instant scale-up & rollback
✓Boxing Day add-on available
✓ Works with your current host or agency✓ No long-term contract✓ UK engineers✓ Prices exclude VAT
Retailers who stayed online.
★★★★★
“They cut our AWS bill by over 40% and left us with clean Terraform. Brilliant team.”
Daniel W.CTO, SaaS platform
★★★★★
“Black Friday traffic was 9× normal and the site never slowed down.”
Tom R.CTO, sports retailer
★★★★★
“The Hyvä rebuild paid for itself in under three months. They know Magento inside out.”
Sarah M.Ecommerce Director, furniture retailer
FREE · NO OBLIGATION
Free peak-readiness audit.
✓ Hosting, caching and database review
✓ Top 5 risks for Black Friday, ranked
✓ Estimated safe traffic capacity
✓ Reply within 24 hours
Black Friday readiness questions.
Yes. We review logs, monitoring and hosting from last peak, then reproduce the failure with a load test so we can fix the real cause.
No. We work with your current host, cloud or agency. If your hosting can’t scale, we’ll tell you honestly and can migrate you before peak.
Ideally 6–8 weeks before Black Friday, so fixes land before your code freeze. Emergency help is available right up to the day.
Magento Open Source, Adobe Commerce, Shopify Plus (apps, integrations and headless front-ends), WooCommerce and custom platforms on AWS, Azure or Google Cloud.
Engineers on dedicated 24/7 watch from Black Friday to Cyber Monday (and Boxing Day if needed), with live dashboards and authority to scale or roll back instantly.
Yes — peak days attract bot traffic and card-testing attacks. We add WAF and rate-limiting rules as part of readiness.
GUIDES & INSIGHTS
Learn from our engineers.
PERFORMANCE · 8 MIN READBlack Friday website readiness checklistAn interactive Black Friday and Cyber Monday readiness checklist for ecommerce — load testing, code freeze, monitoring, promotions and war room.Read the guide →PERFORMANCE · 9 MIN READBlack Friday load testing: how to make sure your store stays onlineHow to load test an ecommerce store before Black Friday: realistic scenarios, target numbers, tools, what to fix and how to run a peak-day war room.Read the guide →HOSTING · 7 MIN READThe real cost of website downtime (and how to calculate yours)Downtime costs more than lost orders — ads keep spending, SEO suffers and customers go elsewhere. Calculate your cost and see how to prevent outages.Read the guide →
NEW TOOL · VISIBI GUARD
Get alerted the moment checkout breaks — 24/7.
Guard runs real test orders, watches payments and errors, and tells you what broke, why and how much revenue is at risk — before customers notice.
✓ Magento, Shopify & WooCommerce✓ Checkout tested every few minutes✓ Cancel any time
BLACK FRIDAY · LIVE1 critical
Checkout timing out under load~£3,800/hour at risk · started 09:02
Discount code BF25 not applyingDetected on 3 of 3 test orders
Payments, search & stock OKChecked 2 minutes ago