DOT In-Depth Security Training
Well done, short segments, low price, concise
Karla, thanks for the 5 stars! Glad you had a good experience with the DOT training!
Mastery Training Services is a leader in the corporate online training marketplace. We help organizations grow and become more successful with our comprehensive workplace training systems and services. In this way, Mastery fulfills its mission of helping build more successful, effective and amazing organizations. Call us at 1-800-258-3837 or contact us online.
Written by the business, not verified by us.Mastery Training Services (mastery.com) has a 4.8 out of 5 rating on OK.one, based on 103 user reviews collected here. It is listed under Education & Training and its reputation is excellent. Praise is nearly unanimous, with 96% rating it 4 stars or higher; The business has replied to 100% of negative reviews; 18 of them were added in the last 12 months. Last updated 2026-09-03.
Well done, short segments, low price, concise
Karla, thanks for the 5 stars! Glad you had a good experience with the DOT training!
Thanks for the review Frederick! Sounds like you had a good experience! Let us know what we can do to earn 5 stars!
I like the videos, I took notes and it helped out a lot
Cameron, thanks for the 5 stars! So glad you found the training helpful!
Best, Cool, safety
Thanks for the great review Pavel! Glad you had a good training experience!
I have a great boss Summer and she made it easy to get logged on.
Thanks for the great review Kerry! Glad you had a good training experience!
Well explained and easy to remember what I was taught
Thanks for the 5 stars Cornelius! So glad to hear your experience was good!
Easy access and fast. 5 stars
Thank you for the 5 stars Omar! Glad to hear you had a good experience!
They were pretty quick in responding and help resolving issues.
Jessy, thanks for the feedback and great review! We appreciate you and your continued business.
Good, knowledgeable information pertaining to my occupation
We are so glad you found the training to help you with your job! Thank you for the 5 stars!
Courses were clear and the video's kept your attention
Michael, thanks for the 5 stars! So glad to hear the course kept your attention!
Concise and to the point good visuals and examples relevant testing at the end
Joseph, thank you for the 5 stars! So glad to hear you found the training to provide good examples!
Very easy and user friendly, would recommend it to anyone
Thanks for the 5 stars Kevin! We're so happy the training was user-friendly!
I am gonna have to add head bubbles to differentiate between the king and queen. Otherwise all is grand.
Martin, thanks for the 4 stars! Not sure what you're referring to regarding the queen and king, but we hope your training experience was great!
Very easy and informative course with nice videos that reflect the importance of the course itself.
Thanks for the great review! Glad to hear you liked the training!
No Problems. Easy as pie to use.
Thanks for the 5 stars Brian! Glad you found the training easy to use!
was very good info.
Thanks for the great review Bruce! We appreciate your business and the 5 stars!
This was hands down, one of the best courses and experience I've ever taken. Thank you guys, keep Up the good work.
Thank you so much for the 5 stars Richard! So glad you had such a great experience! We hope you take more training with us in the future!
Mastery Training Services was very helpful in the set-up; the online training was easy and well received by the staff. Thank you.
Emily, thank you for the 5 stars! So glad to hear you're happy with your training and support!
I got more information
Thanks for the great review! We're so glad you got good information from your training!
Thanks for the 5 stars Arturo! We are glad you enjoyed your training!
103 reviews matching