DNSchecker vs TCPBlock
A side-by-side look at DNSchecker and TCPBlock. For an in-depth review of either product, follow the links below.
DNSchecker
Network & Admin
DNSchecker is a free open-source tool for checking the configuration of DNS servers and mail servers. It can validate records like MX, NS, SOA, SPF, and more across multiple DNS servers.
dnsserverconfigurationvalidation
TCPBlock
Security & Privacy
TCPBlock is a free firewall program that blocks unwanted connections and traffic to your computer. It monitors network traffic and uses predefined rules to detect and block malicious or unnecessary connections.
networktrafficconnectionsfirewallblock
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