Kirsti Lang
Kirsti is a journalist turned content marketer based in Cape Town, South Africa. Her work has appeared in publications like Women's Health, Harper's Bazaar, Runner's World, Red, and Sheerluxe.
A collection of 100 posts
We analyzed more than 1 million videos sent through Buffer to pinpoint the best time and day to post on TikTok for maximum views.
We analyzed more than 2 million Instagram posts sent through Buffer to pinpoint the best time, day, and post format for maximum reach.
Video, photos, carousels, or text? We dug into Buffer’s data, analyzing millions of social posts from Instagram, TikTok, LinkedIn, Facebook, Threads, and X to find out which content format performs best.
Stop chasing the tail-end of Instagram audio trends — here are the latest trending songs on Instagram in July 2025.
I’ve put dozens of AI writing tools to the test — here's a deep dive into my favorite AI writing generators and who I think they’ll be most useful for.
I've tried 57 productivity tools in the past year. These are the ones I keep coming back to.
An up-to-date list of the most viral songs and sounds on TikTok in 2025 — and how to use them to boost your content.
We pored over millions of posts on Instagram, Facebook, Twitter, YouTube, TikTok, and LinkedIn to pinpoint when the best-performing content was published.
Looking for some low-lift ways to make yourself happier? Here's some of the best research that we've found on personal happiness.
Here’s what you need to know about how verification works on Bluesky — and how to get your blue check.
With Bluesky's livestreaming feature, users will be able to discover when someone is live — and jump directly to YouTube, Twitch, or another platform to watch.
We analyzed hundreds of thousands of Threads posts sent through Buffer to figure out which time slots got the most engagement.
Unlockable reels are designed to encourage “a new, IYKYK way” of engaging with your community on Instagram. Here's how they work.
A deep dive into the TikTok algorithm, how it works, and how you can work with it to enhance your visibility and engagement on the platform.
Tried and tested: These AI image generators consistently delivered the best results. Here's a look at how they work, how much they cost, and how they handled a specific prompt.
Everything you need to know about sharing a post to your Instagram Stories (and why it could be great for your reach and engagement).
We analyzed over 1 million posts sent through Buffer to pinpoint the best time and day to post on LinkedIn for maximum engagement.
Videos and shorts posted on these days and at these times tend to get higher views.
After some serious hands-on time with Edits by Instagram, here’s my everything guide, from getting started to tips and tricks to take you to the next level.
What Instagram verification is, the two ways to get a blue check, (with and without paying for Meta Verified), plus some FAQs about the process.
We analyzed more than 1 million tweets to pinpoint the best time, day, and post format for maximum engagement on X (formerly Twitter).
Shorter videos dominate TikTok, but they're generally not the ones with the highest median views and watch time, according to our analysis of 1.1M TikToks.
Instagram has launched a way for users to hit the reset button on their Instagram algorithm — completely wiping the slate clean on their home, reels, and explore feeds.
We analyzed more than 1 million Facebook posts sent through Buffer to pinpoint the best time, day, and post format for maximum engagement.