Hi guys,
I downloaded a landing page from adplexity and am just trying to get to grips with the code.
I removed the url's and replaced it with something else.
My question is, does this landing page automatically detect the operating system and the device?
Or they they just specifically targeting android users using specific operating systems?
The detection is usually done by the tracker and then passed as a parameter to the landing page in the URL.
Why do you ask? Is it to know if you need a lander for each OS?
You can find Voluum's exact answer here:
http://feedback.Voluum.com/knowledge...eter-on-lander
In short, you add the tokens to your landing page like mydomain.com/landingpage.html?model={model}&brand={brand} and then you use the script they describe there 
Awesome, thanks!
How do you test if these tokens are working?
You have to include them in the URL, for example:
yourdomain.com/page.html?brand=TestBrand&model=TestModel will show in your landing page copy as TestBrand and TestModel.
Basically, you replace the { } tokens with real text
In some cases, it will show you the tokens as well if you don't replace them - depends how you implemented the callout in JS.
How does your landing page URL look in
You have a typo. It should be: document.write(getURLParameter("device"))
What text editor are you using for landers? Make sure you get one that tells you as much as possible about such mistakes. Sublime Text is a personal favourite because it's simple yet can be powerful but there are plenty available.
Should work if you fix
Worked for me at least.
THANK YOU SO MUCH!
I've been trying to figure this out for the last 5-6 hours.
I use commodo.
I have never heard of Commodo - what made you choose it?
These typos are the things that keep coders awake at night, haha. OK, maybe exaggerating a bit but it's certainly common and it's good to think of ways to check for, and avoid these mistakes that are not related to the code logic.
Good luck with the campaigns!