The metal framework separating the scoring sections on a dartboard is called the spider.
A traditional dartboard uses thin radial wires and circular wires to divide the numbered wedges and the single, treble and double scoring regions. Together, these wires form the spider.
The spider replaced older, thicker wire arrangements in many modern boards. Thin “blade” systems reduce the area occupied by metal, leaving more playable surface and reducing the chance that a dart strikes a wire and bounces out.
The spider is not a scoring zone itself. A dart touching a wire does not automatically score the region beside it; the dart must remain lodged in the board, and the point of entry determines the scoring segment. This is why wire quality and construction matter in competitive equipment.