Cloudflare (NYSE: NET) and VeriSign (NASDAQ: VRSN) both provide crucial services that keep the internet up and running. Cloudflare's content delivery network (CDN) helps websites load their content more quickly by storing cached copies of their data on edge servers that are physically located closer to the visitor than the origin server. It also shields websites from bot-based attacks.

VeriSign operates the authoritative domain name registries for two of the internet's most important top-level domains -- .com and .net -- and is the primary subcontractor for the .edu and .jobs domains for nonprofit organizations. It also operates two of the internet's 13 root name servers, which facilitate most modern online communications.

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Source Fool.com