。
This page is free to link to.
Literal
This page [topic-は] link-free [copula-です].
リンクフリー is a quintessential wasei-eigo term — in English 'link-free' would mean 'without links,' but in Japanese web culture it means 'you are free to link to this page without asking permission.' A relic of early Japanese web etiquette where linking required explicit permission.