It's very simple. You do nothing. Every month, I check your website for typos and grammatical issues, and you get some peace of mind, knowing that there are no embarrassing errors on your website.
I will review your site once every calendar month and check all of the main pages linked from your homepage (I don't review any legal language like terms of service, and I generally don't review blog articles or PDFs). I was previously the head of content for a billion-dollar company, and I have many years of experience in proofreading.
I charge annually because it's too much hassle to keep track of month-to-month billing, and the credit card fees are a bummer.
Refunds
You can cancel your subscription at any time, though I don't offer a refund unless I've made a mistake. If I miss a monthly review, or if I do a review of your site and miss an important error, send me an email and we'll work it out.