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I think it depends on how much you are trying to sell your website for. I think as a frist step it would be nice to see traffic to the website year over year along with where that traffic is coming from. So for example, you could pull some aggregate data of a comparison of YoY traffic then have an overall break down of traffic sources for the last year or 6 months. In addition, to that data if it was me I would like to see engagement metrics like avg. session duration and bounce rate. It does no one any good if you can drive a lot of traffic but people are bouncing from the site and avg. session duration is very low. I am assuming they would like to see people are coming to the site and engaging with it appropriately. I would also include a breakdown of where website traffic is coming from geographically along with pageviews for each region. I think segmenting this out by Country would be appropriate if it is an international website however if you only deal with people locally I would just segment by state or region.

If you were going to hold off on showing revenue and financials then I would recommend pulling some backlink data from SEM Rush or Ahrefs. Also, I would consider showing some overall rank data from the site as well if you are actively tracking keyword ranking and positioning.

Then if they are serious I would consider going into Google Webmaster Tools (Search Console) and pull some data on the overall health of the website such as, the number of pages indexed, search analytics data like top queries or pages. At this point, I would show financial data and overall revenue of the website.

As a point of reference, I know Flippa lets you buy and sell websites. You can head over to their platform and navigate to the 'Buy' section of the site and see what sort of data other people are openly sharing about their websites.

Hope this helps let me know if you have anymore questions.

The parallax or infinite scroll effect is going to cause some SEO issues since it is basically one webpage with a single url. This is going to make it difficult to optimize your site for a variety of search terms and could lead to keyword dilution since you are optimizing only a single page.

Also, I would imagine an infinite scroll/parallax site would present some analytics issues as well. One issue I have noticed with some client accounts that I have put heatmaps on is no one scrolls below the fold. So I would imagine having a single infinite scroll site design you would see higher bounce rates. I have seen some sites, however, use their homepage as a parallax scrolling page with specific content pieces linked throughout the homepage.

Google has provided some insight into infinite scroll pages on their official webmasters blog which can give you some more insight.

I would turn and run if someone offered to build backlinks for $5. I would recommend trying to leverage the Fiverr community to illustrate some graphics for your content piece depending on what you are writing about.

Also, take a look at Thumbtack and Upwork you can hire some higher quality free lancers on those platforms to help create some high-quality content. I would invest a lot in creating quality content while looking for ways to leverage and amplify it to build backlinks rather than paying someone from Fiverr to do it.

Think about doing some research on influencers within your target market to amplify your content and build backlinks. Hope this helps you out some.

thumbtack