Blended learning (BL), which strategically combines face-to-face and online instruction, fosters flexibility, access, and academic performance. However, it also promotes feelings of isolation and limited authentic communication and feedback. Responding to the BL issues, this action research examined the impact of online peer feedback on students recorded prepared speech performance in a video-based discussion platform (VBD platform). The free platform, accessible on both desktops and mobile phones, allowed students to share their videos with peers and teachers. It used the Corrective Feedback Loop System to support the online peer feedback. It employed mixed methods in data collection, including a comparison of entry and exit video scores, reflections, and focus group discussions. For procedures, firstly, the 30 senior high school students in the Oral Communication course uploaded their prepared speech videos on the website. The students were from a public school in Sibonga, Cebu, Philippines. Secondly, they received online peer feedback on the content, organization, and mechanics of their prepared speech videos. The feedback was stored on the website and was accessible for the 8-week duration of the research. Students viewed the feedback on their mobile phones, either inside or outside the school. After 8 weeks, the results were the following: (1) a significant difference between the entry and exit mean scores; (2) students’ reflections and FGD results showed that the students developed motivation, self-regulation, positive learning attitudes, and peer empathy while reducing embarrassment. The research highlights the power of online peer feedback to improve speech performance, avoiding embarrassment and anxiety.