Boost your pagespeed
increase (eCommerce) CRO
I empower agencies and merchants to boost CRO via pagespeed. Care to join them? I won't be leaving money on the table.

- Training
In-house or agency pagespeed training
Be on top of Core Web Vitals as SEO or UX/CRO team and learn to even optimize beyond Lighthouse recommendations.
- Improve in-house knowledge
- Technical and non-technical
- For SEO, dev or in-house teams
- Read & implement Lighthouse
- Audits
Audit your e-commerce or corporate website
Core Web Vitals impacts ranking and revenue. Let's stop you from focussing on the wrong metrics, start prioritizing real e-commerce optimizations instead.
- 1 or multiple page templates
- Extended recommendations
- Core Web Vitals and beyond
- Roadmap classification
- Public talks
Invite me to your event
Organizing a development or otherwise technical event? I like to share my knowledge concerning:
- Digital accessibility
- Sitespeed and performance
- Core Web Vitals
- Client side versus server side


Agencies speaking up:
The training is valuable for the whole team. No standard lists, but real practical knowledge that you can apply immediately. We have applied the acquired knowledge directly to our customers with great success.
We had in-depth study of the Core Web Vitals. Through an interesting session, our knowledge has been supplemented with developer insights. Erwin combined the theoretical aspects with many practical tips.
In just 1.5 hours he covered so many different aspects of frontend optimization. I suggest his training and consultancy for other agencies as you will become a 100% PRO in speed optimization.
In terms of SEO, I have a high standard. Working together with our devs, Erwin got us past Core Web Vitals and putting our SEO and UX high within our niche.
Got up to speed by Erwin about the CWV. Erwin is capable of explaining this technical matter in a comprehensible way, including the link between metrics and real UX.
Erwin, the proud Groninger who conquered the Netherlands with all his (technical) page speed and UX optimizations. The collaboration is great!
Very satisfied with the update, Erwin knows what he is doing diving right into matters. This can also be seen in our new PageSpeed score of 90+ on mobile.
We enjoyed the in-house training. Erwin combined the session with a high level of knowledge and smart coding solutions! We started optimizing right after the session.
Erwin helped our SEO and development team tremendously during an in-house pagespeed session. He comes up with practical advices that our SEOs and web developers could immediately put into practice.