Increase App Performance — Tame Tag Managers and Take Back Control From Third-Parties
Javascript application performance can be tricky, even if the application has been well-tuned for speed — there’s a big area that engineering does not own and has little control over.
It’s the tag manager and third party code in general.
I can get an app to load and finish in 2 seconds. But with all the vendor code, the reality is usually a 2–3 additional seconds. There’s not much room for improvement left within the JS app itself.
There’s two Passions I have. Architecture and performance
I refused to accept that It could not be improved by engineering, without getting involved in rebuilding the rule sets and code inside of a tag manager. So I started working out how to gain control over third party code at runtime.
I primarily use Adobe Launch, so moving forward, I’ll be referencing Launch and it’s internals. For the record, I’ve got nothing against Launch — all tag managers are equally terrible.
For more generic perf writings, give this a read:
