Updated November 3, 2026 · My Single Property Websites
Each count above is checked against the number the platform itself publishes. Where we couldn't find that number on the platform's own pages, the tool shows the count and no limit.
| Post | Limit shown | Where the number comes from |
|---|---|---|
| Facebook post | None; count only | We didn't find a post length limit on Meta's own pages, so the tool doesn't show one. |
| Instagram caption | 2,200 characters | Meta's Instagram Platform API reference (IG User Media, the caption parameter): "Maximum 2200 characters." |
| Instagram hashtags | None; count only | The same API reference says 30 for captions published through the API. We couldn't confirm the in-app number on Instagram's Help Center, so the caption uses four hashtags and the counter shows how many you have. |
| LinkedIn post | 3,000 characters | LinkedIn Help, Post and share updates: "Posts can contain up to 3,000 characters." |
| X post | 280, counted X's way | X's developer documentation, Counting characters: "Posts on X can contain up to 280 characters." Every link counts as 23 characters, each emoji as 2, and characters outside the ranges in X's twitter-text configuration (most non-Latin scripts, including Chinese, Japanese and Korean) as 2. |
| Email and text | None; count only | An email has no practical limit, and how a long text is split depends on the phone and the carrier. |
Limits read on the platforms' own pages November 3, 2026. The X count follows X's published rules but is our own arithmetic; X's composer is the final word. The generator shortens the X post to fewer features when all of them won't fit.
Every post points to one link, so pick a page where you're the contact: your own listing page, your brokerage's page for the home, or a single property website. When a link goes to a portal page, check in a private browser window whose name and number a buyer reaches first; if it isn't yours, the post sends your audience to someone else. Our guide to posting a listing on Facebook covers this, and how Facebook builds the preview card from the page the link opens.
The Instagram caption doesn't carry the link. It says "link in bio" instead, the usual approach for a feed post; put the listing link in your profile's link field before you post, and swap it when the next listing goes up.
The same fair housing rules that apply to the listing description apply to a social post or an email blast. Describe the home and its features, not the buyer you picture for it. Wording such as "perfect for a young couple" states a preference HUD's guidance says an ad should not contain.
The generator runs every post above, and each feature you type, through the word screen behind our fair housing word checker, which is built from HUD's January 9, 1995 advertising memorandum and former 24 CFR 109.20. It flags two kinds of match: "review first" (an explicit preference, limitation or exclusion) and "check the context" (a word from HUD's lists, or wording whose meaning depends on the facts). Phrases HUD names as acceptable, such as "walk-in closets" or "family room", aren't flagged. It's a word screen, not legal advice, and it only knows the words in those two documents: "perfect for a young family", for example, isn't on HUD's lists, but it can still read as a preference about familial status. A post it doesn't flag is not a post it approves. Fair housing words to avoid has the reasoning and alternatives.
Boosting a post makes it an ad, and housing ads on Facebook and Instagram run under Meta's Housing special ad category, with fixed targeting limits; the Facebook guide lists them.
The address, the price, the beds, baths and square feet, three to five things that set the home apart, what happens next (an open house or a showing) and one link to a page where you're the contact. Describe the home, not the buyer you picture for it.
Meta's Instagram Platform API reference gives a maximum of 2,200 characters for a post caption. The generator counts the Instagram caption against that number.
X's developer documentation says posts can contain up to 280 characters. Every link counts as 23 characters however long it is, because X wraps links in its t.co shortener, and each emoji counts as 2.
LinkedIn Help says posts can contain up to 3,000 characters.
It runs every post, and each feature you type, through the same word screen as our fair housing word checker, which is built from HUD's January 9, 1995 advertising memorandum and former 24 CFR 109.20. It is a word screen, not legal advice, and it only knows the words in those two documents, so a post it doesn't flag is not a post it approves.
Each post above ends at a link, and so does your Instagram bio. A single property website gives that link a page of its own: the photos, the details, the open house dates and your contact form for that one home. Every My Single Property Websites listing page also includes an AI assistant that answers buyer questions from your listing's facts.
One page for one property: the link for your posts, your email and your bio.
Start freeRelated: How to post a listing on Facebook · Fair housing word checker · Listing flyer maker · Open house follow-up templates · Guides