Text with citation [CD] and this [OBB]

Bibliography:
[  CD ] Some text
[ OBB ] Some text

documentclass{scrartcl}

usepackage[backend=biber,style=alphabetic,maxbibnames=1,maxcitenames=1,defernumbers,%
    doi=false,isbn=false,clearlang=false,backref=false]{biblatex}
DeclareFieldFormat{labelalpha}{textsc{#1}}

begin{filecontents}{bib.bib}
@ONLINE{text:source,
    author={B. Obby},
    title={Sources today},
    url={http://www.example.com},
    urldate={2017-02-20},}
@ONLINE{text:src,
    author={Cicero, Marcus Tullius and Doe, John},
    title={Sources tomorrow},
    url={http://www.example.com},
    urldate={2017-02-20},}
end{filecontents}

bibliography{bib}
nocite{*}

begin{document}

Text with citation and no extended spacing: autocite{text:src}\
Text witch citation and ordinary spacing: autocite{text:source}

printbibliography

end{document}