Professor Messer

@professormesser Very Active +1.4%

Professor Messer is a Cybersecurity YouTube channel with 1.3M subscribers. As of August 2026, it has published 3,255 videos with 261.6M total views (~5K per video). It covers CompTIA Certifications and uploads on a weekly basis.

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.

Channel Statistics

1.3M Subscribers

3.3K Videos

261.6M Total Views

5K Avg Views

164 Avg Likes

4 Avg Comments

3.34% Engagement Rate

Weekly Upload Frequency

Connect with Professor Messer

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Technologies Taught

CompTIA Certifications

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Content Style

6 Long-form

1h 31m Avg Duration

30-Day Growth

+1.4% Subscribers

+0.9% Views

Views Trajectory · last 84 days

254.7M → 261.3M total views

+0.9% views (30d) — slower than its prior 30d (+1.1%), momentum decelerating

Featured Video

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Professor Messer (@professormesser) is a cybersecurity YouTube channel with 1.3M subscribers. With 3255 videos and 261.6M total views, the channel averages 5K views per video. Professor Messer has an engagement rate of 3.34%. The channel uploads on a weekly basis, making it a very active creator in the developer education space. Professor Messer covers technologies including CompTIA Certifications.