Longform articles are different from essays. An essay is one continuous argument; a longform article is a structured piece with sections, subheadings, and often technical depth. The OG image for a longform article should signal that structure so the reader knows what they are getting before they click. Most blogs use a generic featured image that gives the reader no information about the article's depth, structure, or technical level.

SleekPixel handles the longform card by reading structured fields. Map article_headline, read_time, word_count, and section_count to the template. The headline takes the title slot, the read time and word count render on the meta line, and the section count appears on the mark area. Together, the elements communicate that this is a structured piece with substantial depth, not a quick post.

The OG image 1200 by 630 is the default size because longform articles depend on link previews more than essays do. The same template emits a 1200 by 675 Twitter card for the share post and a 1200 by 1200 LinkedIn card for professional reposts. All three sizes render from one definition so the article reads consistently across every channel where it surfaces.

Longform articles depend on link previews more than shorter content does, because the reader's decision to click depends on understanding what they are committing to. A reader sees a link in Slack, in a newsletter, or in a Twitter feed and has two seconds to decide whether to invest 18 minutes reading. The OG image is the only signal that makes that decision easier or harder.

A generic featured image gives the reader nothing, so they fall back on the headline alone and often skip past on the assumption that the article is shorter and less serious than it actually is. Click-through rate suffers, which is unfortunate because longform articles are usually the most valuable content a blog produces. SleekPixel solves the depth-signal problem with a template that renders read time, section count, and word count onto the OG card directly.

The reader sees an 18-min read with 12 sections and 3,400 words and understands immediately that this is a serious piece. That clarity converts the reader who has the time and is in the right mindset. It also filters out the reader who is not in that mindset, which is a feature rather than a problem because that reader was going to bounce anyway.

Across a year of monthly longform articles, the OG cards build a recognizable editorial brand in feed and link-preview spaces, and the archive reads as a serious body of work rather than scattered long posts that happen to be longer than usual.