I have a couple of existing web sites, one of which has three Google adsense ad-units on each page. The code for these ad-units was originally generated in the usual way, using the Google adsense set-up page in my account. I customised the colours, borders etc. etc. to suit the scheme of my site.
I am now in the process of building a new and improved web site, to relace the original one, and would like to place the same three adsense ad-units on each page across the entire site.
To save time, and as the colour scheme of my new site matches the original site, can I just copy and paste the code for each adsense ad-unit straight over from my original web site source code, retaining the custom colours and borders, or must I generate new code using my Google adsense account?
What's more, if I do have to generate new code using Google, does the code for each ad-unit have to be unique, or can the same piece of code, so long as it contains my publisher reference number, be used for every ad-unit? What I mean is, does each new ad-unit have to have its code made individually, as this would take me forever, or can I just generate one piece of code and then roll it out across the entire site?
I did notice that newly generated code appears to have a unique ad-unit reference number included, as well as my publisher number. This is something that my original ad-unit code does not have.
Does this matter? Is it something new?
Here's another question.
If someone clicks on the adsense adverys on my site, how long does it take before a record of this shows up in my account? Is it almost instantaneous, or does it take like a week/month?
Finally, is there any way to check whether ad-units are working, without breaking the Google golden rule of not clicking on the ads shown on your own site? Even Paypal have a web developers area where payment options can be tested before being posted.
If Google don't allow for testing, then surely it's something they should consider.
Any advice gratefully received.