B2B Website Performance Fix for an Aerospace Supplier: Berlin Cost (2026)

The verdict in three sentences

A Tier 1 buyer opening a capability page on a phone between meetings leaves if it takes 5.8 seconds to render. A performance project for an industrial site in Berlin costs a 2026 ballpark of 3,000 to 5,500 EUR for the audit then 7,000 to 16,000 EUR of fixes, over 4 to 8 weeks. The target is measurable: LCP under 2.5 s, INP under 200 ms at the 75th percentile on mobile, and bounce rate down 20 to 35%.

Reading Core Web Vitals on an industrial site

LCP (Largest Contentful Paint) measures when the largest visible element renders, often a five-axis machining centre photo in the header. INP (Interaction to Next Paint) measures the delay between a click, for example a "material: titanium" filter, and the visible response. CLS measures layout shifts. Google scores them on real visitor data, not a desktop lab test.

Usual causes and their fix cost

On supplier sites the causes repeat: 3 MB JPEG shop-floor photos, an autoplay company video, a hero carousel, a PDF catalogue embedded in the page, a heavy WordPress theme and a dozen tracking, chat and map scripts. In Germany, a consent banner that loads every tag before choice also hurts INP and GDPR compliance. High INP almost always comes from JavaScript blocking the main thread during filtering.

The audit comes first: it combines Search Console field data, lab measurements and buyer journey analysis to rank work by impact. Beyond 16,000 EUR of fixes, a rebuild on a modern stack is often the better investment.

Protecting sensitive content without slowing down

An aerospace site publishes capabilities, EN 9100 and Nadcap certificates, sometimes parts subject to export control. Detailed content moves behind a secure area, which also lightens public pages. Certificate PDFs download on demand instead of being embedded. Monthly Core Web Vitals monitoring stops each new shop-floor video from pushing LCP back up.

Set a governance rule once the fixes ship: every new page or video must pass a performance budget before going live, for example a maximum of 2 MB page weight and no new third-party script without marketing and IT sign-off. Teams that adopt such a budget usually keep LCP under 2.5 s for years, while teams without one tend to drift back above 4 s within 12 months.

Mini case study

Lukas, marketing manager at a 280-employee machining supplier near Berlin, gets 3,200 monthly visits to capability pages with 68% bounce. He receives 24 RFQs a month.

He invests 3,800 EUR in the audit and 11,200 EUR in fixes, 15,000 EUR in total. After 8 weeks mobile LCP is 2.2 s and INP 160 ms. Bounce drops to 49%, a 28% relative decrease. Visitors who keep reading rise from 1,024 to 1,632, and at a constant conversion rate RFQs climb to about 38 a month. If 1 RFQ in 20 becomes a 90,000 EUR annual contract at 20% margin, the 14 extra RFQs represent on average 12,600 EUR of margin a month. The investment pays back in just over a month.

FAQ

How much does Core Web Vitals optimisation cost for a B2B site?

The 2026 ballpark in Berlin is 3,000 to 5,500 EUR for the audit and 7,000 to 16,000 EUR for fixes. The total depends on the theme, third-party scripts and media volume.

How soon do results show?

Fixes take 4 to 8 weeks. Google field data updates over a rolling 28-day window, so allow one more month for the status to turn green.

Why is INP so high on capability pages?

Filters by material, size or process often trigger heavy scripts. Rebuilding them brings INP from 450 ms to under 200 ms in most cases.

Should we remove shop-floor videos?

No, load them on demand with a static poster. Initial page weight then drops by 3 to 5 MB.

When is a rebuild the better option?

If the audit prices fixes above 16,000 EUR or the theme blocks optimisation, a rebuild usually wins over 3 years.

Let's scope your project. We audit your capability pages and price fixes by impact, to turn your Core Web Vitals green in 4 to 8 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.