: Experts recommend keeping featured images under 300 KB and in-post images under 100 KB to maintain site speed. Tools like Cloudinary or Simple Image Resizer are often used to hit this specific target.
: For technical "posts" like DNS TXT or SPF records, there is a hard limit of 255 characters per string, requiring longer records to be split into multiple parts. (255 KB)
: There are also specific postal boxes (e.g., 255 x 190 x 30 mm) designed for "proper" posting of small goods. : Experts recommend keeping featured images under 300