| Subject | Spanish | English |
| gen. | perro rastreador | tracker dog |
| pest.contr. | polvo rastreador | tracking powder |
| IT | rastreador de ojos | eye tracker |
| comp., net. | rastreador de paquetes | packet sniffer |
| nat.sc. | rastreador estrellar | stellar tracker |
| nat.sc. | rastreador estrellar | star tracker |
| comp., MS | Rastreador local | Local Scout (A feature accessed from Search or Maps that displays things to see and do, shopping, and restaurants in a user's current location and the surrounding area) |
| rem.sens. | rastreador mecánico | mechanical scanner |
| comp., MS | regla de impacto del rastreador | crawler impact rule (A rule that applies to a specific URL or range of URLs on which you can configure crawling to reduce the resources that are used on the server that is being crawled) |