I am quite new to seo, I want to ask, can I just change the entire content on the page after I optimize it ? Like, if I want to optimize for a keyword, but I don't want to take out time to write first, I will write whatever I want putting more kwywords and after I get the top position, can I just write it again, isn't this considered as updating content, will google rank my page higher or lower, like if I will use squidoo to do it.Thanks so much guys.
It can be done, but it's risky. What you'd be doing is basically the SEO version of Russian Roulette, but with three of the bullets in revolver being live, two of them being blanks, and the last being a dud. Do you really want to take the chance? Write out your page first and be done with it. Besides, rewriting a page after it's been written just to "optimize" it just means you're wasting your time.
If you've got so much to re-write, why not write a new page, perhaps getting more traffic to your site via the new content, keeping the traffic the old content is generating in place?
I'd take Dan Schulz's advice and not take the gamble. It could work for a short time - but after you rewrite your content, what happens when google crawls your site again in another week or two? you're going to lose your rankings.... it's inevitable. Write good content to begin with, and if you write it correctly (don't spam keywords, and write for your audience), then you'll be able to build backlinks and rank high anyway.
Good content is a MUST! I recently took over a set of sites that had terrible content on them so what I did was to first, establish a baseline on the traffic and the current keyword set. Then I wrote some killer content and SLOWLY started changing the online content. After each crawl, I would update the site with something that I had written. Now the rankings are up, the traffic is up and I haven't lost anything. Definitely take heed though in changing content all at once - it can hurt you.
Natural writing can give you both quality content and reader loyalty. Just write in natural ways and you will be safe. In my opinion, Google has it own algorithm to define content quality as a "draft level". Google may catch some low quality page but doesn't give any weight to them. Content which hasn't been written in natural ways but optimize for bot to read will be ignored or loose weight. Google can define some basic pattern of spam contents such as - Keyword stuffing - Use improper grammar along the page or use too many misspelling keywords - Automatic content rewritten by swap between languages (English --> France --> English) - Rewritten RSS feed scraper content If you rewrite the page, Google may think your content is updated but they will scour the page and compare to the old version. If they found too much different between each of them then you may have a risk as Dan stated. I suggest you to write a new page instead and leave it as that.
Avoid making too many moves that revolve around ranking higher in search results. Content should be optimized for people first, Google second.
I would not concentrate so much on re-writing articles/tutorials for just optimizing sake. I would write the content naturally as if you are speaking to the reader whilst obviously adding in keywords where it seems to fit, not everywhere1 Overall you want your content to have about 5-9% keywords, not any more than this, if it is this may effect your rankings worsening them, plus your content would probably read stupidly. Will.