Robert John Page was born in Llwynypia Hospital on 3 September 1974 and grew up in the nearby village of Tylorstown, Wales.

His first major feat with the club came in the 1997–98 season when new manager Graham Taylor appointed Page as captain and led the "Hornets" to the Second Division title.

In May 2001, in one of his first acts as manager, Gianluca Vialli transfer listed Page,[11] demanding a £1 million fee from prospective clubs.

[12] He was loaned out to First Division rivals Sheffield United in August 2001,[13] before moving to Bramall Lane permanently the next month for a £350,000 fee.

He played in the club's play-off semi-final victory over Nottingham Forest but was powerless to stop Wolverhampton Wanderers winning 3–0 in the final at the Millennium Stadium.

[20] Page signed an extended contract in September 2006,[21] and was appointed as club captain in November,[22] though his contribution was more limited in the 2006–07 season as he picked up ten bookings in his 29 league appearances.

In January 2008, he joined Huddersfield Town in League One as manager Andy Ritchie wanted to add experience to his young defensive back line.

[34] In July 2009, Page was offered a player-coach role at Port Vale under Micky Adams,[35] but he decided to stay at Chesterfield.

Richardson was relieved of his duties in the summer of 2009, and his replacement, John Sheridan brought Ian Breckin to the club, who formed a strong early defensive partnership with Page.

On 22 September 2013, Page was put in temporary charge of first-team affairs at Vale Park after Micky Adams decided to take time off work to have hip replacement surgery.

[52] In October he made his first permanent signing, bringing in free agent striker Dany N'Guessan on a two-month contract.

[55] He was nominated for the League One Manager of the Month award in February after overseeing a run of three successive clean sheet victories in the club's six games.

[58] Page needed to avoid a poor start to the 2015–16 season as chairman Norman Smurthwaite warned he was prepared to make "ruthless decisions" if the club were struggling by September.

[59] Page made nine new signings during pre-season – Sam Kelly, Sam Foley, Anthony Grant, Ben Purkiss, Remie Streete, A-Jay Leitch-Smith, Jak Alnwick, Uche Ikpeazu and Ryan Inniss – citing the need to sign players who "desire success".

[60] He was nominated for the League One Manager of the Month award in November following a sequence of three wins out of four which moved Vale to the fringes of the promotion race.

[61] However, a defeat to League Two side Exeter City in the Second Round of the FA Cup brought speculation over Page's future as manager.

[62] He retained his position, however, and was named as Football League manager of the week after his side overcame a 2–0 half-time deficit to beat Peterborough United 3–2 on 12 March.

[65] He stated that he saw Northampton as "the next step for me and something I'm really looking forward to", and cited the positivity of chairman Kelvin Thomas as a major factor in his decision to join the club.

[66] The Cobblers went unbeaten in his first six games in charge and Page was named as EFL manager of the week after overseeing a 3–2 win over Milton Keynes Dons at Sixfields.

[67] The unbeaten run also included a penalty shoot-out victory over Premier League side West Bromwich Albion in the second round of the EFL Cup.

[74] In August 2019, Page was appointed assistant coach to the senior Wales squad under manager Ryan Giggs, taking the place of Osian Roberts.

[80] After Giggs was charged with assault in April 2021, it was confirmed that Page would manage Wales at the delayed UEFA Euro 2020 finals.

[85] For 2022 World Cup qualification, Wales were drawn in Group E with Belgium, Czech Republic, Belarus and Estonia with Page again acting as interim manager.

[87] Fifteen days later, Giggs resigned ahead of his trial, making Page the permanent manager until the end of the World Cup.

[90] Wales were eliminated from the World Cup in the group stage, having won just one point; they came from behind to earn a draw against the United States, before losing 2–0 to Iran and 3–0 to England.