SEO (Search Engine Optimisation) is changing faster than Superman in the phone booth.
Here is one old SEO techniques you should NOT be using OR allowing your Agency to use , if you pay someone for SEO:
BackLinks and SEO :
Back in the day ( years ago) Google and the other Search Engines used to say that IF you had a lot of links to your site, that was great!
A whole industry sprang up, (especially in India) with what was know as Link “Farms”.
That all changed dramatically in 2012 & 2013 with Google’s infamous ‘Penguin’ & ‘Panda’ Updates and continues to evolve
Any SEO “value” NOW depends on the authority (& quality) of the site that is sending YOUR site a link.
If they are ‘spammy’ (eg 1 or 2 page sites) this is bad.
This is particularly true if those links appear quickly, over a short period of time ie “unnaturally’ fast.
Let me be clear .
IF you have links to really solid, well regarded sites that are relevant to what you do and write about, that is a good thing.
Do those Links manually and ensure you check them.