DA 36 is entry-level editorial territory, and the right place to test whether guest content earns you anything before you spend premium money.
Where techdemis.org is not a topical match for your market, buy it for that plausibility and for whatever brand exposure comes free, and put your exact-match anchors on the sites that genuinely cover your subject. That one discipline is the difference between a general guest post strengthening a profile and the same link making it look synthetic.
Within the General section of the index — 1,576 listings, 39 median DA, 5k median traffic, $70 median price — this placement is within a few percent of the median on cost and in line with the index median on audience. Listings in that section range from $30 at the cheap end, so the question is not whether $70 is high for a link, but whether it is high for this one.
Generalist inventory also varies more than any other kind, which is why the numbers in this brief matter more than the label. A 36 DA domain with 5.9k estimated monthly visits and Do-follow links is a different product from the same DA with a tenth of the traffic, and they are priced too close together in most catalogues.
The index lists this property's editorial links as followed. Availability of a followed link changes with the site's monetisation decisions, so we confirm the tag on the live URL before counting delivery.