The increasing use of online virtual laboratories (OVLs) in educational institutions as a recent educational technology application necessitates developing a new educational platform for assisting instructors in using such technology in the teaching process without web programming obstacles. The OVLs are online environments that provide students with several types of content such as simulations, videos, scientific images, and infographics related to real laboratory experiments. This article proposes a unified online virtual laboratory platform (OVLP) to support instructors who teach real laboratory experiments in multi-domains. To evaluate the proposed platform, five university instructors and five experts of ICT in education have participated in this study. The data were collected using online questionnaires for both specialists, respectively. Regarding the results, they confirm that the proposed platform is acceptable for teaching real laboratory experiments, especially in the tested domains.