The Posted Once Blog
Practical guides on scheduling, posting at the right time, and growing on every platform.
Instagram Reel Cover Image Size 2026
Instagram Reel covers work best at 1080x1920 with key elements kept inside the center 1080x1080 safe zone so nothing gets cropped.
2 min read
Instagram Alt Text Character Limit 2026
Instagram alt text is limited to 100 characters, noticeably tighter than the caption limit. Here's how to write useful alt text in that space.
2 min read
Google Business Description Limit 2026 (750 Characters)
Google Business Profile descriptions max out at 750 characters, but only the first 250 show before search results truncate it.
2 min read
Facebook Upload File Size Limit 2026
Facebook feed video allows up to roughly 4GB and 240 minutes; Stories run on a shorter 120 second duration cap. Full breakdown by placement.
3 min read
Facebook Video Dimensions Guide 2026 (Feed, Reels, Stories)
Facebook video specs by placement: 16:9 for feed video, 9:16 for Reels and Stories, since the 2025 Reels merge unified vertical video.
3 min read
Facebook Story Dimensions 2026 (1080x1920)
Facebook Stories use the same 1080x1920, 9:16 spec as Instagram Stories, with videos capped at 120 seconds per Meta's own requirements.
2 min read
Facebook Bio and About Length Guide 2026
Facebook splits identity text into a short Intro (about 101 characters) and a Page short description (255 characters). Here's the split.
3 min read
Bluesky Video Length Limit 2026 (3 Min)
Bluesky videos can run up to 3 minutes long, with a 100MB file size cap and a 25 video daily account ceiling. Full breakdown here.
2 min read
Bluesky Upload File Size Limit 2026 (100MB)
Bluesky video uploads max out at 100MB per file, with a 25 video or 10GB daily account ceiling. Here's the full breakdown.
3 min read
Bluesky Video Dimensions 2026 (16:9)
Bluesky's recommended video resolution is 1920x1080 at 16:9, even though most clips are shot vertically. Here's how to handle the mismatch.
3 min read
Bluesky Image Size Guide 2026
Bluesky allows up to 4 images per post at roughly 1MB each. Full image size guide covering posts, avatars, and banners.
2 min read
Bluesky Banner and Avatar Size 2026
Bluesky banner size is 3000x1000px at a 3:1 ratio, and avatars work best at 1000x1000px. Full specs and safe zone tips inside.
3 min read
Bluesky AT Protocol Rate Limits 2026 (Full Breakdown)
Bluesky's current API rate limits: 5,000 points per hour, 35,000 per day, plus the 3,000 request per 5 minute HTTP cap, explained.
3 min read
Bluesky Character Limit 2026 (300)
The Bluesky character limit is 300 per post as of 2026. How it's counted in graphemes, what happens if you go over, and how to fit more using threads.
3 min read
Facebook Cover Photo Size Guide 2026
Facebook cover photo dimensions for 2026: exact desktop and mobile sizes, the safe zone that keeps content visible, and the ideal upload size.
4 min read
Instagram Character Limit 2026 (2,200 Caption)
Instagram's character limit is 2,200 characters per caption in 2026. What actually shows before the 'more' cutoff on mobile, and how the bio limit differs.
4 min read
Instagram Hashtag Limit 2026: Now Just 5
Instagram's hashtag limit dropped from 30 to 5 per post in December 2025. What changed, why it happened, and how to adapt your hashtag strategy now.
4 min read
Twitter (X) Character Limit 2026 (280 or 25K)
The X character limit is 280 characters for free accounts and up to 25,000 for any paid tier in 2026. Full breakdown of posts, bios, DMs, and link handling.
4 min read
Instagram Profile Picture Size 2026
Instagram profile picture size for 2026: the real minimum, the recommended upload size for sharp display, and why edges get cropped in the circle.
4 min read
Instagram Story Dimensions 2026 (1080x1920)
Instagram Story dimensions for 2026 are 1080x1920 pixels at 9:16, plus the safe zone at top and bottom you need for text, logos, and stickers.
4 min read
YouTube Video Dimensions 2026 (16:9)
YouTube video dimensions for 2026: 1920x1080 landscape for regular video uploads versus 1080x1920 vertical for Shorts, plus resolution guidance for both.
4 min read
Twitter (X) Header Image Size 2026
The X header image size is 1500x500 pixels in 2026. Why the bottom-left corner needs to stay clear and the exact file size limit to stay under.
4 min read
Facebook Character Limit 2026 (63,206)
Facebook's post character limit is 63,206, but visible text truncates much earlier. Every Facebook text limit in one table, checked July 2026.
3 min read
LinkedIn Character Limit 2026 (3,000 Post)
LinkedIn's post limit is 3,000 characters, but the feed cuts posts off around 140 to 210 characters first. Every LinkedIn limit in one table.
3 min read