Hye! I was looking for an online Dijkstra's algorithm solver. I opened this website: https://graphonline.ru/en/
But why it is giving wrong results. This is the graph I tried https://ibb.co/d6NwxQH
In the image you provided the small numbers are lables and not the actual line length.
When you choose the tab "Connect Vertexes" and the window pops up the text box to the right of "Edge Weight" is the length of the line. The box that says "Text above Edge" is the label.
When set up correctly the number that sets on the line between two points is the length. Anything above this number is the label.
When set up correctly the answer if "A -> E -> F".