Regarding Link Detox, links it diagnoses as Toxic are generally fine as they're either not indexed by Google or have malware/viruses/etc., but I recommend a manual review of any diagnosed as Suspicious. I used it recently to get started cleaning up our backlinks and some legit sites and blogs were under Suspicious simply because they didn't have many links pointing to them.
This one is so obvious, we’re going to look at it first. Paid search, social media advertising and display advertising (try our Smart Ads Creator!) are all excellent ways of attracting visitors, building your brand and getting your site in front of people. Adjust your paid strategies to suit your goals – do you just want more traffic, or are you looking to increase conversions, too? Each paid channel has its pros and cons, so think carefully about your objectives before you reach for your credit card.
For our client: We monitored everything on a daily basis. If something came up, which needed to be fixed, we were quick to implement it with the development team at the business. We also rolled out numerous campaigns multiple times as they worked effectively the first time around in generating significant traffic so it was second nature to do the same thing twice.