It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 158.5 kB or 70% of the original size.
Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.

New customers will receive a huge discount offer. Spin Rewriter gives you a lot of quality written content in a short period of time. Clients receive a 5-day free trial for using their services, but after 5 days you still get 30 additional days to make sure the Spin Rewriter technology is right for you. They allow you to avoid SEO devaluation from duplicate online content. Try it out, and if it’s not exactly right for your business, you’ll receive a refund no questions asked.

This is absolutely useless. It claims it rewrites English sentences, but it just offers words alternatives, which is only nouns. Also, most of those suggested alternatives are unable to use. If you see their maker's home page, Whitehat Box, you can see numerous people request the refund. It's far from western progressive software like Grammarly or sketch engine. They stole my money with the diceiptive advertisement.

So it is pretty hard actually to achieve unique and human readable article, but with little twists it can be done. I needed my wordai account just for FCS Networker, but I figured out that Spin Rewriter will fit perfectly for me because of their affordable price. If you need article spinner just for seo purposes, avoid them. If you want to create amazing articles, yes they are very good ..but pricey as ****…
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