This website (available also as a standalone program) enables you to test for proximity of human endogenous retrovirus (HERV) and HERV-like sequences in the genome to differentially expressed genes, the latter uploaded either as genome coordinates or Affymetrix microarray IDs
For detailed information see Kruse K, Nettling M, Wappler N, Emmer A, Kornhuber M, Staege MS, Grosse I. 2018. WebHERV: A web-server for the computational investigation of gene expression associated with human endogenous retroviruses. Front Microbiol. submitted.
A tutorial for server development and the code for this server can be found here: Tutorial and code at GitHub
Step-by-step user instructions can be found here: Instructions