https://www.youtube.com/feeds/videos.xml?channel_id= (Inserting the channel ID of any YouTube channel at the end of this URL allows you to see stats such as titles, descriptions, view counts, etc for a person's channel, e.g. https://www.youtube.com/feeds/videos.xml?channel_id=UCGmviKK0DXzUSEWAcAYZbew)

https://.bandcamp.com/sitemap.xml (Putting an artist's username before ".bandcamp.com" allows you to see the edit history of all of their tracks and albums e.g. https://zacnelson.bandcamp.com/sitemap.xml)

16383 (Maximum image size for photos hosted on Google services (Blogspot, YouTube, etc. e.g. https://yt3.ggpht.com/ytc/AIdro_njJomIA_e_LCw46O3FZdDM_F6qk6dX93s0N_tLvKVJJBg=s16383)

15000 (Maximum image size for YouTube letter profile pictures e.g. https://yt3.googleusercontent.com/ytc/AIdro_nZ8TtmYoFcPRVuSuGJEqRqUm4cd5SQIRZzzy3_TNc=s15000)

640 / 960 (Seemingly the maximum resolutions for 4:3 & 16:9 b.vimeocdn.com images respectively, which was the early to mid 2010's era url for Vimeo thumbnails e.g. http://b.vimeocdn.com/ts/819/931/81993135_640.jpg & http://b.vimeocdn.com/ts/302/967/302967861_960.jpg)

http://flickr.com/photo.gne?id= (After the "=" paste the number that appears in between the / after the 4 digit number and the _ in a flickr image url. e.g. http://flickr.com/photo.gne?id=4373623299)

ffmpeg -i "video path" -vf scale="1920x1080" output.mkv (Video upscaling code for FFmpeg, doesn't matter if the output's filetype is different to the base video)

yt-dlp --cookies-from-browser firefox (Code that allows you to download things such as Vimeo videos, Instagram stories & age-restricted YouTube videos using yt-dlp, signing into the mentioned sites on Firefox required)

yt-dlp -U (Updates yt-dlp to the latest version)

⧹⧸：＊？＂｜ (Alternatives to characters that are forbidden in Windows filenames (\ / : * ? " < > |) excluding < & >) Credit to yt-dlp for these. You need to download this file to view the characters properly.