A Blog: If you are using blog and you are relying on Adsense, then you can buy traffic. I suggest it only if you are in a very bad state/ initialization phase of blog. Do not go for a huge number of traffic for the first time, increase the number of visitors in time (to avoid suspicion from search engines). You must also consider re-targeting these readers. But remember you can’t afford to buy traffic all the time, one of these days Google is going to find you, so alongside adopt SEO, content marketing practices also. In order o buy traffic, I would suggest fiverr. look for reputed seller/ reviews. Adopt practices suggested here.
Note: There are literally dozens of places you can use a keyphrase, from captions to comments, web addresses to “Alt” tags. Feel free to get tricky if you’d like. But generally, the less visible it is to readers, the less important it is to Google. So focus on those elements listed above. That’s what readers (and therefore Google) really care about.
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One way to quickly increase your traffic is to go on a site like Wikipedia and search for broken links. Then, replace those broken links with quality content by first researching the old content using the Wayback Machine. Then, replace it with similar, high-quality content and contact the editor of the page to offer up yours as a replacement. It's not guaranteed, but when it works, it's powerful.
If you’re new to AdWords, or you’re fulfilling your New Year’s resolutions to finally get a handle on your AdWords account, one of your first questions will be deciding how to leverage the search and display networks. While the Search network can be a great way to catch customers who are actively searching for your product or service, it can be difficult for new and niche businesses to reach people who aren’t already familiar with their product and may not be actively searching for them on Google. For advertisers looking to generate that initial interest in their product, display advertising is a great way to get in front of the most prospective customers at minimal cost.
Buying website traffic shouldn't be a replacement for SEO and other conventional methods of online marketing, but it can certainly give you that edge you need in the highly competitive online market. You can improve your Alexa ranking, time on site and lower bounce rate, but most importantly - it will drive potential clients and bring your website in front of your target audience long before you will see the first results of your conventional marketing strategies.