Paste your post and see exactly how it lands in the feed: where LinkedIn cuts it off with "see more", your character count, and whether your hook survives. Free, no login, nothing leaves your browser.
The "see more" cut is approximate: LinkedIn truncates near 140 characters on mobile and 210 on desktop, and it shifts with line breaks, links, and attachments. Aim to land your hook inside the first 140 characters so it shows everywhere.
Character limits, the see-more cut, hooks, hashtags, formatting, and the posting habits that decide whether a B2B post reaches anyone at all.
A LinkedIn post allows up to 3,000 characters, which is roughly 450 to 500 words. Comments allow 1,250. An article, published through the article editor rather than the feed, allows far more and behaves like a blog post rather than a post.
The limit is not the target. Only the first 140 characters or so are visible on mobile before the see-more prompt, which means the entire 3,000 is available but nothing beyond the first line or two is guaranteed to be read.
Treat the limit as a ceiling, not a goal. The most common mistake in B2B is writing to the space available rather than to the point being made. If your argument lands in 600 characters, stop at 600.
Roughly 140 characters on mobile and 210 on desktop. The exact point shifts depending on line breaks, links, mentions, emoji, and whether the post carries an attachment, which is why a live preview is more reliable than counting.
The consequence is structural: the visible portion is your entire advertisement for the rest of the post. Everything after the cut only gets read if the visible part earns the tap, and the tap itself is a meaningful engagement signal, so the cut is doing double duty as both a reader filter and an algorithmic one.
Design for 140 rather than 210 so your hook survives on the smaller surface where most people are reading. And never let the cut fall mid-sentence in a way that loses the meaning: an accidental truncation reads as sloppy, and a deliberate one that creates curiosity reads as intentional.
There is no single right length, but there are reliable bands. Short posts of 200 to 500 characters work for a single sharp observation, a question, or a link with context, and they carry very little risk. Medium posts of 800 to 1,500 characters are the workhorse for B2B: enough room for a story, a lesson, and a takeaway, without demanding a large commitment. Long posts of 1,500 to 3,000 can perform extremely well when the content justifies the length, because dwell time itself is a positive signal, but they punish anything padded.
The honest test is whether every line earns its place. Long-form works when a reader keeps finding reasons to continue; it collapses when the reader realizes at line six that the post is going to end on a generic lesson they already knew.
Whatever the length, the first two lines carry the same weight, because they are all anyone is guaranteed to see.
Get the entire hook inside the first 140 characters, and make it a complete thought that creates a reason to keep reading. Patterns that consistently work in B2B:
Things that waste the hook: opening with context ("Last week I was at a conference and..."), opening with your company name, opening with a greeting, or opening with a line that only makes sense once you have read the rest. Write the post first, then find the best line in it and move it to the top.
The widely repeated claim is that LinkedIn suppresses posts with outbound links because it wants to keep people on the platform. LinkedIn has publicly pushed back on the strongest version of that claim, and the practical evidence is mixed rather than settled. What is not in dispute is that outbound links reduce dwell time, because people who click leave, and dwell time is a signal the feed responds to.
The pragmatic approach: if the goal is reach and engagement, keep the post self-contained and put the link in the first comment, or add it to the post by edit after it has been live for an hour. If the goal is traffic and you are willing to trade reach for clicks, put the link in the post where people will actually see it.
Be wary of ritual. Link-in-comments has become a reflex for many teams without anyone measuring whether it helps in their account. Test both, on similar content, and let your own numbers decide.
Three to five, at the end of the post. More than five reads as spam and produces diminishing returns; zero is perfectly acceptable and increasingly common.
Choose a mix rather than piling on the biggest tags. One or two broad industry tags aid categorization, two or three specific tags reach a genuinely relevant niche, and a branded tag is useful only if you intend to maintain it. Enormous generic hashtags put you in a stream you will never surface in.
Hashtags today are closer to a topical hint for the feed than a discovery mechanism for readers, so do not let them distort the writing. A hashtag jammed mid-sentence hurts readability for a benefit that is largely theoretical. Put them on their own line at the end, where they are out of the way of the argument.
Not natively in the feed composer. The bold and italic text you see in some posts is made with Unicode mathematical alphanumeric characters, and it comes with a real cost: screen readers cannot read it, announcing gibberish or nothing at all to visually impaired readers, and search indexing treats it as unrelated symbols rather than words.
For a B2B brand that means the accessibility trade-off is rarely worth a small emphasis gain, and in some organizations it is a compliance problem outright.
Use structure instead of formatting. Short paragraphs, deliberate line breaks, a single-line statement standing alone for emphasis, and a simple list with plain dashes all create hierarchy that works everywhere, for everyone. If a point genuinely needs to stand out, give it its own line and its own white space.
Aggressively. LinkedIn is read on a phone, in a scroll, in a hurry, and a dense block of text is the fastest way to lose a reader who was otherwise willing.
Practical rules: keep paragraphs to one to three lines, put a blank line between every paragraph, let the hook stand entirely alone at the top, and give a key line its own paragraph when you want it to land. Lists work well, but keep them to five items or fewer and keep each item short.
The failure mode in the other direction is real too. A post where every single line is its own paragraph reads as a performance rather than a thought, and B2B audiences have become allergic to it. Use white space to serve comprehension, not to manufacture drama.
The general pattern for B2B is Tuesday to Thursday, between 8am and 10am or around midday, in your audience's time zone, not yours. Early morning catches the commute and the first-coffee scroll; midday catches the lunch break.
Treat that as a starting hypothesis rather than a rule. Your audience may be engineers who read at 10pm or executives who scroll at 6am on a Sunday. Post at varied times for a few weeks, then read your own analytics rather than a listicle's averages.
Timing is also the least important variable in the list. A mediocre post at the perfect hour still underperforms a strong post at an average hour, and LinkedIn's feed is not purely chronological, so a post that earns early engagement keeps surfacing for a day or more. Spend your effort on the hook long before you spend it on the schedule.
Two to five times a week is the band where consistency compounds without quality collapsing. Below once a week you never build the recognition that makes the next post land. Above once a day, most teams start repeating themselves, and posting twice in 24 hours can cause your two posts to compete with each other for the same audience.
Consistency beats volume. Three genuinely useful posts a week, every week, outperform a burst of daily posting followed by a quiet month, both with the audience and with the feed.
The constraint for most teams is not ideas, it is production. The realistic way to hold a cadence is to work from a small number of substantial source assets and repurpose deliberately, so one webinar, report, or customer conversation yields a month of posts, a carousel, and an ad, rather than starting from a blank page every morning.
The feed is optimizing for one thing: keeping members reading things they find valuable. Everything else follows from that.
None of this is a substitute for having something worth saying. The mechanics amplify quality; they do not create it.
It is completely free, with no login, no email, and no usage limit. Everything runs in your browser: the character count, the hook analysis, and the feed preview are all computed locally, so your post text is never uploaded, stored, or transmitted.
That makes it safe to draft unannounced news, customer stories awaiting approval, and anything else you would not paste into an anonymous website. Write or paste your draft, watch where the see-more cut lands on mobile and desktop, tighten the hook until it survives both, then copy it straight into LinkedIn.
DesignTech AI produces finished, on-brand LinkedIn posts, carousels, and video, hook included, from the content you already own. Ready for you to launch.
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