[QuickLinks -- Click here to rapidly navigate through this document NAME="page_bc41118_1_1"> http://sec.gov/Archives/edgar/data/1511683/000104746911004910/a2203664zf-1a.htm On May9, 2011, thempany filed Amendment No.4 to its registration statement on FormF-1,luding a preliminary prospectus. This free writing prospectus updates and supplements the informationntained in thempany's preliminary prospectus,ted May9, 2011.l references to page numbers are to Amendment No.5.]

[QuickLinks -- Click here to rapidly navigate through this document JIAYUAN.COM INTERNATIONAL LTD. http://www.sec.gov/Archives/edgar/data/1511683/000104746911004715/a2203664zf-1a.htm On April 27, 2011, the Company filed Amendment No. 1 to its registration statement on Form F-1, including a preliminary prospectus. This free writing prospectus updates and supplements the information contained in the Company's preliminary prospectus, dated April 27, 2011. All references to page numbers are]

[QuickLinks -- Click here to rapidly navigate through this document NAME="da41109_jiayuan.com_international_ltd."> JIAYUAN.COM INTERNATIONALLTD. http://www.sec.gov/Archives/edgar/data/1511683/000104746911004715/a2203664zf-1a.htm On April27, 2011, thempany filed Amendment No.1 toits registration statement on FormF-1,luding a preliminary prospectus. This free writing prospectus updates and supplements the informationntained in thempany's preliminary prospectus,ted April27, 2011.l references to page numbers are to Amendment No.3.]