---
title: HubSpot themes and modules for another agency | Level Up Studio
description: We build inside iWeb Development's own HubSpot portal — theme, landing-page modules and templates, to their conventions and quality rules.
---

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iWeb Development Speed & SEO

# Zero layout shift across 456 pages

iWeb Development brought us into their own HubSpot portal. Their site runs in four languages across hundreds of pages, and parts of it were visibly unstable — so we measured first, then fixed.

0 px

layout shift in the hero, was 0.126 CLS

456

pages fixed in one change

### The Challenge

The animated hero used across the knowledge base and the integration pages loaded with no space reserved for it. On mobile it was zero pixels tall until the first scroll, then everything below it jumped; on desktop that registered as a layout shift of 0.126, above Google's 0.1 threshold for a good score. Visitors saw backgrounds popping in and sections at the wrong width.

### The Solution

- Measured before changing anything: Lighthouse on the mobile profile, three runs per variant, compared only between runs taken under similar load — the same page swung from 230 ms to 5.3 s of blocking time with nothing on the site changed
- Fixed the animated hero at the source: its space is reserved before the animation loads, and a still frame shows from the first render. One change, applied to 456 pages, checked against the entire sitemap rather than a sample — the first sample had missed exactly the pages where the fault was
- Moved the web font into the theme, taking two third-party origins off the critical path, and stopped the same font file being downloaded twice
- Took out a change that Lighthouse scored as an improvement: it broke the scroll position after a reload or a jump, which no score measures. Only a behaviour test caught it
- SEO across four languages: hreflang with x-default on every template, breadcrumbs that follow the page's language, and corrected structured data for subscription pricing
- All of it inside iWeb's own portal, to their conventions and module rules, under their name

### The Result

The hero loads with zero layout shift on every one of the 456 pages that use it, measured on mobile and desktop in four languages. Every number here comes from a measurement — including the one that made us remove a change.

Contact

## Get in touch

Tell us briefly about your challenge and we'll get back to you within one business day.

[📞 Call us +46 76 858 48 47](tel:+46768584847) [✉️ Email us hej@levelupstudio.io](mailto:hej@levelupstudio.io) [📍 Visit us Ljungvägen 5, Lindome](https://www.google.com/maps/search/?api=1&query=Ljungv%C3%A4gen+5+437+31+Lindome)

### What happens next?

We respond within one business day.

A free 30-minute meeting.

A clear proposal — with no obligation.

GDPREU data hostingHubSpot Partner

By submitting, you agree to us processing your personal data in accordance with GDPR.

[LEVEL U![](https://levelupstudio.io/hubfs/raw_assets/public/levelup-theme/images/logo-mark.svg)P ![Studio](https://levelupstudio.io/hubfs/raw_assets/public/levelup-theme/images/logo-studio.svg)](https://levelupstudio.io/?hsLang=en)

Websites, CRM, automation and custom applications — built by senior consultants in Sweden.

GDPREU data hostingHubSpot Partner

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Contact +46 76 858 48 47 hej@levelupstudio.io Ljungvägen 5, 437 31  
Lindome, Sweden   
(based just,  
outside Gothenburg)

© 2026 Level Up Studio · Org.nr 19891126-2437 All rights reserved.

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```

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```json
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