We use sentence caps for all headings, and no punctuation. Headings can be fragments and do not need to be well-formed sentences. They just need to work.
Using headings to break up large chunks of text. Headings help make articles readable and scannable.
We use subtitles on 99% of articles. Subtitles are generally complete sentences with punctuation. Subtitles can have more than one sentence is the situation warrants it.
All pages and posts have feature images. We endeavour to make these images unique.
Most feature images are 1200 x 630 pixels.