Less trustworthy TLDs (what Mueller calls ‘iffy’ TLDs) are extensions that are often abused for spamming, phishing or malware. Most don’t verify registrants’ identities and offer domain names at basement prices, or even free of charge. As a result, they’re attractive both to cost-conscious registrants and to malicious actors. TLD rankings are published by various organisations, including Spamhaus and Interisle. And it’s best to avoid any TLD that often shows up in the rankings as less trustworthy. The rankings are dynamic, so it’s a good idea to check that you’re looking at an up-to-date list.
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