The Posted Once Blog
Practical guides on scheduling, posting at the right time, and growing on every platform.
YouTube Video Length Limit in 2026: What You Can Actually Upload
YouTube's video length limit is 15 minutes for unverified accounts and up to 12 hours once you verify. Here's exactly how the limit works.
2 min read
YouTube Channel Art Size Guide 2026
Upload YouTube channel art at 2560x1440, but keep everything important inside the 1546x423 safe area that displays on every device.
2 min read
Twitter (X) Video Dimensions 2026
X recommends 1280x720 at 16:9 for video, but 1:1 and 9:16 both work, and any ratio between 1:3 and 3:1 is technically accepted.
2 min read
TikTok Profile Picture Size 2026
TikTok profile pictures need a minimum of 200x200px in a square format, displayed as a circle. Here's the size that actually looks sharp.
3 min read
Threads Video Length Limit 2026 Guide
Threads allows video posts up to 5 minutes long, though posts under a minute perform best. Full breakdown of length, format, and file size.
3 min read
Threads Video Dimensions Guide 2026
Threads video works best at 1080x1920, 9:16 vertical, the same standard Instagram uses for Reels. Square and landscape are also supported.
3 min read
Threads Hashtag Limit 2026 Explained
Threads uses one topic tag per post instead of classic multi-hashtag lists. Here's how tagging on Threads actually works in 2026.
2 min read
Pinterest Video Pin Dimensions 2026
Pinterest video pins work at either 1000x1500 (2:3) or 1080x1920 (9:16). Here's when to use each and the length and file size limits.
3 min read
Pinterest Board Cover Size Guide 2026
Pinterest board covers work best at 1000x1000px, but display in a cropped landscape strip on your profile, so keep content centered.
2 min read
Pinterest Bio Character Limit Guide 2026
Pinterest's bio limit is 500 characters per Pinterest's own help documentation, well beyond the outdated 160 character figure many guides still cite.
2 min read
LinkedIn Video Length Limit 2026 (15 Min)
LinkedIn native video maxes out at 15 minutes for organic posts on any device, and 30 minutes for video ads. The old 10-minute mobile cap is gone.
2 min read
LinkedIn Upload File Size Limit 2026
LinkedIn native video uploads support up to 5GB, but video ads and Company Page videos are capped much lower at 200MB.
2 min read
LinkedIn Video Dimensions 2026 (16:9)
LinkedIn video supports 16:9 landscape at 1920x1080 alongside square and vertical formats. Here's which performs best where.
2 min read
LinkedIn Banner Image Size Guide 2026
LinkedIn personal profile banners are 1584x396px, while Company Page banners use a wider 4200x700px canvas. Full specs and safe zones.
2 min read
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