The ratings of 12 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”).

comScore, Inc. (SCOR) is having a tough week. The company’s rating falls from a D to a F. ComScore, Inc. offers a digital marketing intelligence platform that aids customers as they make business decisions and implement digital business strategies. The company also gets F’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of SCOR stock.

GTT Communications, Inc. (GTT) experiences a ratings drop this week, going from last week’s C to a D. The company also gets F’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of GTT stock.

Slipping from a C to a F rating, Reis, Inc. (REIS) takes a hit this week. Reis, Inc. is engaged in the business of providing commercial real estate market information and analytical tools for its customers. The company also gets F’s in sales growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of REIS stock.

Autobytel Inc. (ABTL) gets weaker ratings this week as last week’s C drops to a D. Autobytel Inc. is an automotive marketing services company that helps automotive retail dealers and automotive manufacturers market and sell new and used vehicles through its internet lead referral and online advertising programs. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of ABTL stock.

This week, Hortonworks, Inc.’s (HDP) rating worsens to a F from the company’s D rating a week ago. The company also gets F’s in earnings momentum, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of HDP stock.

Points International Ltd. (PCOM) slips from a C to a D this week. Points International Ltd. offers proprietary solutions to the loyalty industry. For more information, get Portfolio Grader’s complete analysis of PCOM stock.

TechTarget, Inc.’s (TTGT) rating weakens this week, dropping to a D versus last week’s C. TechTarget, Inc. is a provider of specialized online content that brings together buyers and sellers of corporate information technology products. The company also gets F’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of TTGT stock.

EarthLink Holdings Corp. (ELNK) earns a D this week, moving down from last week’s grade of C. EarthLink Holdings Corp. is a provider of a suite of communications services to individual and business customers in the United States. The company also gets F’s in sales growth. For more information, get Portfolio Grader’s complete analysis of ELNK stock.

This week, Great Elm Capital Group, Inc. (GEC) drops from a C to a D rating. The company also gets F’s in free cash flow. For more information, get Portfolio Grader’s complete analysis of GEC stock.

Wowo Ltd. Sponsored ADR (JMU) declines this week from a C to a D. The company also gets F’s in return on equity. For more information, get Portfolio Grader’s complete analysis of JMU stock.

This is a rough week for Perion Network Ltd (PERI). The company’s rating falls to F from the previous week’s D. Perion Network Ltd is a digital media company that provides products and services to consumers. The company also gets F’s in operating margin growth, earnings growth, and free cash flow. For more information, get Portfolio Grader’s complete analysis of PERI stock.

Inuvo, Inc. (INUV) declines this week from a D to a F. Inuvo, Inc. offers online and traditional advertising, marketing, and communications services. The company also gets F’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of INUV 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.