Why Is My Website Still Down? Understanding DNS Propagation
You bought a new domain. You pointed it to your hosting. You hit "Save." You anxiously type your URL into the browser... and you see an error page.
Did you break something? Probably not.
You are likely experiencing DNS Propagation. It is the internet's version of "travel time," and it is the most frustrating part of managing a website.
What is DNS Propagation?
When you update a record (like your A Record or MX Record), that change doesn't happen everywhere instantly. It has to spread (propagate) across thousands of servers around the world.
The Analogy: Imagine you change your phone number. You tell your best friend. Then your friend tells their neighbor. Then the neighbor tells the postman.
If someone calls you 5 minutes later, they might still have the old number because the news hasn't reached them yet. The internet works the same way.
Why Does It Take So Long? (ISP Caching)
Internet Service Providers (ISPs) like Comcast, AT&T, or Jio save a copy of your website's address to make loading faster. This is called Caching.
If you change your server IP from 1.1.1.1 to 2.2.2.2, your ISP might say: "I just checked this website an hour ago. I'll use the old address I saved."
Until your ISP clears its cache, you will see the old site, even if the rest of the world sees the new one.
The "TTL" Factor
How long do they wait before checking again? That depends on the TTL (Time to Live).
- High TTL (e.g., 24 hours): Servers will remember the old data for a full day.
- Low TTL (e.g., 5 minutes): Servers refresh the data quickly.
Pro Tip: Before moving a website, lower your TTL to 300 seconds (5 minutes) a day in advance. This makes the switch happen almost instantly.
How to Check Real Status
Just because you can't see the site doesn't mean it's broken. You need to check how the rest of the world sees it.
- Go to the
https://findinfo.io/tool/dns-lookup FindInfo DNS Lookup. - Enter your domain.
- Check the results. If the tool shows the New IP, but your computer shows the Old IP, your site is fine! You just need to wait for your local internet to catch up.
Conclusion
Patience is a virtue in web development. Propagation usually takes 1 to 4 hours, but can sometimes take up to 48 hours. Don't panic, don't change the settings again—just check the global status and wait it out.
Is your site updated globally?
