Swindon strengthened their promotion challenge following victory away at struggling Hereford.
The Robins dominated the opening stages and took the lead from Paul Caddis' spot-kick, after Paul Benson was brought down by Ryan Green in the box.
Hereford then doubled their lead after Bulls keeper Adam Bartlett failed to hold on to the ball.
Hereford reduced the deficit when Rob Purdie smashed in a long-range effort but could not find an equaliser.
VIEWS FROM THE DRESSING ROOM
Swindon Town manager Paolo di Canio told BBC Wiltshire:
"That is the most difficult ground to come and play football.
"It was a fantastic result and my lads prove once again that they can play a different kind of football.
"This is the kind of game that you have to win if you want to win the title. I'm very happy because of the way we won.
"We defended very well, with desire, determination. For this I'm very proud."
Hereford 01 Bartlett 02 Green 12 Purkiss 22 Anthony 06 Purdie Booked 08 Featherstone 11 Lunt Booked 17 Colbeck (Taylor - 57' ) 18 Clist Booked 34 Evans Booked (Pell - 63' ) 25 Elder (Facey - 68' ) Substitutes 28 Cornell 04 Pell 27 Clucas 10 Facey 19 Taylor Swindon 35 Foderingham 06 Boateng 07 Caddis Booked 27 Cibocchi 10 Ritchie 12 McCormack 16 Cox 19 Rooney (De Vita - 70' ) 24 Smith (Risser - 66' ) 31 Bodin (Connell - 82' ) 09 Benson Substitutes 03 Kennedy 13 Risser 17 Connell 23 De Vita 34 Murray