Symptoms
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Domain's IP address was changed to 203.0.113.3 from 203.0.113.2
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The domain shows Web Server Default page, default Apache page, default website for IP, or a blank page.
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If the new IP and domain name are added to the local system's "hosts" file, correct content is displayed.
Cause
Domain resolves to the old IP address globally:
C:> nslookup example.com 8.8.8.8
Server: google-public-dns-a.google.com
Address: 8.8.8.8
Non-authoritative answer:
Name: example.com
Addresses: 203.0.113.2
# dig +short example.com @8.8.8.8
203.0.113.2
Domain resolves to the old IP address globally due to the DNS cache.
Resolution
Wait until the new values are propagated globally. It might take up to 48 hours.