Find a couple of your competitors and set up a bidding process, that is probably the best way to get the maximum out of a company like that. Aim for 10 years net or so, and be sure to stipulate that you reserve the right to refuse all offers.
I've written up a HN thread about this subject a long time ago:
From experience this is what you should be able to get if you negotiate hard and have more than one interested party at the table. If you can find only one taker and they are aware of it you will see a much lower value.
Also: for less than 10x net, if is growing steadily just hold on to it for a little while longer, but do continue to talk to interested parties, you will meet your goal sooner or later. Patience is the big secret to successful negotiation.
multiple is highly dependent on the growth rate, and makes no sense to talk about it without knowing how fast the company is growing. $100k/year growing 100% is very different than growing 10%.
Buying small websites is a hard business, because you have to maintain them. If one engineer can maintain 10 sites, it costs $2k/mo to maintain each, so the gross profit has to be well above that to make a business out of it. Maintaining 10 sites, each written independently with their own tooling choices, requires an engineer with a very large cranium.
It can be done if you pair it with an agency model. You keep multiple devs on hand who treat the sites as internal clients. Over time if you keep making acquisitions, you have less and less need to keep the external client pipeline full.
I've written up a HN thread about this subject a long time ago:
https://jacquesmattheij.com/how-to-sell-your-company