Professor Messer

@professormesser Very Active +3.9%

Professor Messer is a CS Fundamentals YouTube channel with 1.3M subscribers. As of July 2026, it has published 3,248 videos with 257.9M total views (~7.1K per video), and a 3.23% engagement rate — top 33% of CS Fundamentals educators.

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

3.2K Videos

257.9M Total Views

7.1K Avg Views

218 Avg Likes

12 Avg Comments

3.23% Engagement Rate

Weekly Upload Frequency

Top 33% engagement among 401 channels in CS Fundamentals

Connect with Professor Messer

Website Twitter Facebook

More educators from the United States (2251 channels) →

Content Style

7 Long-form

1h 46m Avg Duration

30-Day Growth

+3.9% Subscribers

+2.6% Views

Views Trajectory · last 84 days

251.4M → 257.9M total views

+0.8% views (30d) — slower than its prior 30d (+1.1%), momentum decelerating

Featured Video

CS Fundamentals

View on YouTube

Professor Messer (@professormesser) is a cs fundamentals YouTube channel with 1.3M subscribers. With 3248 videos and 257.9M total views, the channel averages 7.1K views per video. Professor Messer has an engagement rate of 3.23%, placing it in the top 33% of cs fundamentals educators on the platform. The channel uploads on a weekly basis, making it a very active creator in the developer education space.