Artigos de Propagation & Troubleshooting

Propagation & Troubleshooting 2,171 How to check a domain DNS Checking a domain’s DNS means finding out where it currently points. It is the first step whenever a site will not...
Propagation & Troubleshooting 2,333 How long DNS changes take to propagate You changed the nameservers or a DNS record and nothing happened yet. That's normal - DNS changes are not instant....
Propagation & Troubleshooting 2,146 Registered the domain and it still does not open: waiting, broken, or missing hosting You registered the domain, paid, got the confirmation - and the address still does not open. This happens for three...
Propagation & Troubleshooting 1,271 I changed the DNS and nothing shows yet: TTL, cache, and the four places to check You changed the nameservers, or you changed a record, and you still see the old place. This is almost never a fault:...
Propagation & Troubleshooting 1,556 DNS_PROBE_FINISHED_NXDOMAIN: what it means and what to check The browser says “this site can’t be reached” and, in small print, DNS_PROBE_FINISHED_NXDOMAIN (or...
Propagation & Troubleshooting 1,338 Checking DNS from the command line: dig and nslookup, and how to read the answer The short answer: dig and nslookup ask the DNS directly what it answers for a name. They are the quickest way to...
Propagation & Troubleshooting 1,046 A domain or subdomain opens the wrong site: the document root and how to check it The short answer: each domain and subdomain on a hosting account points to a folder (the “document root”) and shows...
Propagation & Troubleshooting 998 What DNS propagation really is: caches that expire, not a change that travels The short answer: when you save a DNS record, the change takes effect at once on the servers that hold the zone (the...
Propagation & Troubleshooting 1,006 Lowering the TTL before a migration: the timeline that keeps the switch short The short answer: the TTL tells every cache how long it may keep an answer, counted from the moment it asked. So at...
Propagation & Troubleshooting 1,097 Flushing DNS on phones, browsers and routers: the caches ipconfig does not reach The short answer: ipconfig /flushdns and its Mac and Linux equivalents (they are in clearing the cache) only clear...
Propagation & Troubleshooting 966 Asking different DNS resolvers: how to read a propagation checker without panic The short answer: an online propagation checker asks the same name of a list of public resolvers around the world...
Propagation & Troubleshooting 1,188 A new record that still does not exist for some people: negative caching and the SOA The short answer: resolvers do not only store answers that exist. When they ask for a name that does not exist...