Is it common to have some of error/warning(currency duplicate,redirect, etc...) in most website that rank well?

[LauraHT]

Hi could any body could give me some idea on 'on page optimisation'

Currently in my campaign I have around 3000+ errors, 14,000+ warning, 7000+ notices for the following reasons:

Overly-Dynamic URL
Temporary Redirect
Title Element Too Long (> 70 Characters)
Duplicate Page Title
etc...

First of all I know these have negative effect on SEO. Now to fix towards those issues it involve lots of works and times. At the same time most of our important keywords/url rank position have not changed over the last 12 months. Does that mean the above has only limited negative effect? I just want to know is it worthy to invest the man/hour/money to clean those issues. As it involves decent development time.

Is it common to have some of error/warning in most website that rank well?

(e.g. I 've seem may big website have duplicate title/meta-desc on their currency variant page)

[KevinBudzynski]

Sure. Depending on the site--could be quite common. I would fix the issues on the most "important" pages and devout the resources on creating compelling content.