While the proven Zacks Rank places an emphasis on earnings estimates and estimate revisions to find strong stocks, we also know that investors tend to develop their own individual strategies. With this in mind, we are always looking at value, growth, and momentum trends to discover great companies.Of these, perhaps no stock market trend is more popular than value investing, which is a strategy that has proven to be successful in all sorts of market environments. Value investors use a variety of methods, including tried-and-true valuation metrics, to find these stocks.Luckily, Zacks has developed its own Style Scores system in an effort to find stocks with specific traits. Value investors will be interested in the system's "Value" category. Stocks with both "A" grades in the Value category and high Zacks Ranks are among the strongest value stocks on the market right now.DeNA Co (DNACF) is a stock many investors are watching right now. DNACF is currently holding a Zacks Rank of #2 (Buy) and a Value grade of A. The stock is trading with P/E ratio of 15.13 right now. For comparison, its industry sports an average P/E of 23.07. Over the last 12 months, DNACF's Forward P/E has been as high as 16.19 and as low as 8.09, with a median of 11.91.Value investors also use the P/S ratio. The P/S ratio is is calculated as price divided by sales. This is a prefered metric because revenue can't really be manipulated, so sales are often a truer performance indicator. DNACF has a P/S ratio of 1.38. This compares to its industry's average P/S of 1.61.Finally, our model also underscores that DNACF has a P/CF ratio of 4.62. This figure highlights a company's operating cash flow and can be used to find firms that are undervalued when considering their impressive cash outlook. DNACF's P/CF compares to its industry's average P/CF of 15.13. DNACF's P/CF has been as high as 6.94 and as low as 4.51, with a median of 5.36, all within the past year.Another great Internet - Services stock you could consider is Sify Technologies Limited (SIFY), which is a # 2 (Buy) stock with a Value Score of A.Sify Technologies Limited is trading at a forward earnings multiple of 22.71 at the moment, with a PEG ratio of 1.14. This compares to its industry's average P/E of 23.07 and average PEG ratio of 1.51.SIFY's price-to-earnings ratio has been as high as 37.14 and as low as 19.28, with a median of 22.99, while its PEG ratio has been as high as 1.86 and as low as 0.96, with a median of 1.15, all within the past year.Furthermore, Sify Technologies Limited holds a P/B ratio of 1.89 and its industry's price-to-book ratio is 5.06. SIFY's P/B has been as high as 3.82, as low as 1.79, with a median of 2.90 over the past 12 months.These figures are just a handful of the metrics value investors tend to look at, but they help show that DeNA Co and Sify Technologies Limited are likely being undervalued right now. Considering this, as well as the strength of its earnings outlook, DNACF and SIFY feels like a great value stock at the moment. Want to Know the #1 Semiconductor Stock for 2022? Few people know how promising the semiconductor market is. Over the last couple of years, disruptions to the supply chain have caused shortages in several industries. The absence of one single semiconductor can stop all operations in certain industries. This year, companies that create and produce this essential material will have incredible pricing power. For a limited time, Zacks is revealing the top semiconductor stock for 2022. You'll find it in our new Special Report, One Semiconductor Stock Stands to Gain the Most. Today, it's yours free with no obligation.>>Give me access to my free special report.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report DeNA Co (DNACF): Free Stock Analysis Report Sify Technologies Limited (SIFY): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research