Professor Messer is the Internet's most comprehensive choice for CompTIA A+, Network+, Security+, and other IT certifications. All of Professor Messer's certification videos are posted online, and you can watch every minute of every video right here on YouTube.
Professor Messer is the Internet's most comprehensive choice for CompTIA A+, Network+, Security+, and other IT certifications. All of Professor Messer's certification videos are posted online, and you can watch every minute of every video right here on YouTube.
Quick answers
Yes. It uses YouTube’s supported sub_confirmation=1 parameter on the channel URL.
We read public HTML and RSS, not the private Studio API. Counts can lag or round differently.
We count distinct playlistId values embedded in the public channel HTML. That can include tabs, shelves, or duplicates — treat it as a rough signal, not Studio’s exact total.
Yes. It summarizes public data and your subscribe URL. Always respect YouTube’s terms when linking or embedding.
Use clear sections, real FAQs, and follow-up searches. Pair AdSense with honest editorial embeds—not fake “download” buttons.
