Some people think backups are unnecessary - that is, until they lose something important to them.And what could be more important in this online world than your website - Regular backups of your website structure, databases, content and other resources, are your safety net when something goes wrong.If all goes well, your website will increase in size and popularity, and your web developer will make adjustments to your annual hosting fee to better suit the needs of your investment.
This way you guarentee a set number of hours at a reduced hourly rate.
Dedicated companies charge thousands of pounds to do this at a highly specialised level, over many months (achieving good results takes time and study) but your web developer can also perform more general SEO functions that also improves website weight with search engines, and at a lesser cost.
This will involve reorganising your text (often rewriting whole paragraphs) and highlighting keywords and phrases to make your content more appealing to search engines.
Usually, there are no ongoing monetary payments once you've paid your initial CMS installation fee - not as far as content updates go because you can write new content and make website updates yourself.
However, you do need to offset this with the time it takes to make such updates - you might not be spending any additional money, but you will be spending time.