Have you a domain from GoDaddy and having issues setting it up with free webhosting provided by 000webhost?
Regarding the WWW. in this tutorial please disregard if it causes you issues - resort to just yoursite no WWW
Then try this guide out.
Step 1) Login to GoDaddy.com
Step 2) Browse to this page click here https://dcc.godaddy.com/dcc50/Default.aspx
On your domain hit the drop down arrow button and click Manage DNS
Browse down this page and and click ADD RECORD
Type in your URL when it asks for it.
Then save this record.
NOW back to this page if it hasn’t taken you back… https://dcc.godaddy.com/dcc50/Default.aspx
Hit the drop down menu again beside your domain and this time hit FORWARD
Add forwarding and type in “www.YOURDOMAIN.com” as in your purchased domain not 000webhostapp URL this time.
Now wait 24-48 hours and your domain should load and work perfectly.
Setting your DNS to Google DNS can allow you earlier/faster access than your standard Internet provider sometimes.
Following this tutorial will allow you to change your DNS in seconds.
[code]Example: Changing DNS server settings on Windows 7
Go to the Control Panel.
Click Network and Internet > Network and Sharing Center > Change adapter settings.
Select the connection for which you want to configure Google Public DNS. For example:
To change the settings for an Ethernet connection, right-click Local Area Connection > Properties.
To change the settings for a wireless connection, right-click Wireless Network Connection > Properties.
If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and then click Properties.
Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.
Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
Replace those addresses with the IP addresses of the Google DNS servers:
For IPv4: 188.8.131.52 and/or 184.108.40.206.
For IPv6: 2001:4860:4860::8888 and/or 2001:4860:4860::8844.
For IPv6-only: you can use Google Public DNS64 instead of the IPv6 addresses in the previous point.
Restart the connection you selected in step 3.
Test that your setup is working correctly; see Test your new settings below.
Repeat the procedure for additional network connections you want to change[/code]