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Stefan Holm Olsen

Stefan Holm Olsen

 Alias: Stefan Holm Olsen
 Company: Stefan Olsen
 Location: Bulgaria
 Twitter: @StefanHolmOlsen
 About me: I am OMVP and Freelance Optimizely Consultant. I write about technical concepts and ideas at https://stefanolsen.com

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Level: Esteemed Citizen
Total contribution points: 2079 (gain 921 points more to level up)

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Syndicated blog - Posted on: Sep 14, 2025

When doing a routine performance test, during a CMS 12 upgrade, I was able to achieve 95% performance improvement. Let's look at SearchValues with ...

Syndicated blog - Posted on: Jul 21, 2025

If you also hate false errors in your request logs, let’s clean up one path at a time. Here is how to avoid logging 404 errors caused by Outlook.

Syndicated blog - Posted on: Oct 13, 2023

This past week I spent 4 days with Optimizely at Opticon 2023 in San Diego, and got to hear a lot of inspiring announcements and ideas. Here are my...

Syndicated blog - Posted on: Sep 06, 2023

If your Optimizely site already sends transaction emails through an email platform API, why not do the same with Optimizely notification emails?

Syndicated blog - Posted on: Aug 15, 2023

For all those who have websites in Optimizely DXP, consider improving email deliverability with SendGrid. There is a bonus tip at the end…

Syndicated blog - Posted on: Aug 07, 2023

Earlier I showed how to integrate Hangfire jobs with Application Insights, to correlate all job logging. Now you can do the same with regular...

Syndicated blog - Posted on: Jul 26, 2023

Optimizely Commerce 14.13.0 removed a road block for customizing product catalog roots. Read here about how to use it.

Syndicated blog - Posted on: Mar 23, 2023

I previously demonstrated how to correlate telemetry to Azure Application Insights within a Hangfire job. But how about those jobs that are built a...

Syndicated blog - Posted on: Mar 21, 2023

Here are four useful tricks I always apply to any site where I use Hangfire (code included).

Syndicated blog - Posted on: Mar 04, 2023

There is a less-known hidden gem in Optimizely CMS for brief request-scoped caching. Read about which it is and how simple it is to use.