I have set up a couple of adsense ad units on my site to display text-only ads from within google adsense interface. I then later check the ads, only to find out that image ads are displayed instead of text ads.
Is there a way to specifically force text-only ads on a site either through visiting a special adsense URL or by applying special adsense code?
The reason why I ask this is because when I test my pages with webpagetest.org, the text ads load significantly faster than the image ads. In fact, the image ads load 3x slower in comparison to the rest of any given page (which takes about 3/4 of a second to load).
This URL shows an example of how long the advertisement takes to load in comparison to the rest of the site content:
I know via google I can specify the type but it only applies to the ad unit regardless of page its on.
I'd prefer changing individual ad unit types via code or by special URL for testing purposes regardless of the ad unit in use.
So if on one page, I specify I want text-based ads and on another page I specify I want image-based ads then it should be text-based ads for that one particular page and image-based ads on the other page, even if both pages share the same ad unit number.
The point is, I don't want to have to go into google's interface all the time to change the ad unit type.