The ratings of 6 Internet Software & Services stocks are down this week, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Cvent, Inc. (CVT) declines this week from a C to a D. The company also gets F’s in operating margin growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CVT stock.

Gogo Inc.’s (GOGO) rating weakens this week, dropping to a D versus last week’s C. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of GOGO stock.

This week, Bankrate, Inc. (RATE) drops from a B to a D rating. Bankrate, Inc. owns and operates an Internet-based consumer banking and personal finance network. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of RATE stock.

Liquidity Services, Inc. (LQDT) experiences a ratings drop this week, going from last week’s D to a F. Liquidity Services, Inc. provides full service solutions to market and sell surplus assets and wholesale goods. The company also gets F’s in sales growth, earnings revisions, and free cash flow. For more information, get Portfolio Grader’s complete analysis of LQDT stock.

Everyday Health, Inc. (EVDY) slips from a D to a F this week. The company also gets F’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of EVDY stock.

Sify Technologies Limited Sponsored ADR (SIFY) gets weaker ratings this week as last week’s C drops to a D. Sify Technologies Limited Sponsored ADR is an integrated Internet, network and electronic commerce services company in India that offers end-to-end solutions with a range of services delivered over a common Internet backbone infrastructure. For more information, get Portfolio Grader’s complete analysis of SIFY stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.