hi everyone my site is up for 7 months and now i want to change the title, is it safe? will google punish me?
Once changed. You'd better do more SEO and make Google spider come to your website and index your page again.
Yes you can change your title, there will be no problem. only you will have to do start promotion of that page very quickly.
If you are not ranked in teh first page, then i think it's a good idea to update the site. Just remember, your site will disappear for awhile if you change it.
If you change your page title after long period then it is no problem in the side of google and other search engine.
Google will not penalize your website just because of changed in title. However, since the title is one of the most important on-page factors, any change made to title tag will cause your ranking fluctuated for a period of time. It is hard to estimate but around 1-3 weeks from my own experiences. Please made a change with carefully by analyze through about keywords you need to place in title, and you should keep main keyword in the title to keep current ranking. If you have made with caution you will not have to made change frequently, and the ranking will not fluctuated frequent as well.