Why Does DNS Propagation Take Too Long?

The DNS propagation takes too long  because some ISP servers and computers remember the the (old caches) setting for a long period of time. How? your computer, as well as the servers of your Internet Service Provider  only update the records for the long interval of time. They assume that the records are the same as the last time it checked.

Before we learn about  DNS propagation, let first learn a little bit about how DNS works. When you setup a website with a web hosting company, they always create a Master DNS record in their Domain Name Servers. When the change of the nameservers take place, the domain registrar (the company you paid for the honor of owning your domain name) will points the domain to webhosting provider DNS server because they host the master authority of domain.

If the website is queried from outside, the query command first go to the registration database to find out the DNS authority of the website. Then they visit webhosting DNS servers to find out what is the IP Address for the domain name in question, and from there the public audience can now access the website.

In order to speed up the rate at which their customers can view the internet, each Internet Server Provider caches the DNS records to their servers. They make their own copy of the master records and read them locally instead of reading them from the remote server. By this approach it  speeds up website accessibility by (1) speeding up the duration browser uses to call the domain name  (2) Reduce the amount of traffics on the web and therefore making the website load more faster

The negative part of the caching process is that different ISP update the caches differently; some instantly to 24 hrs, 36hrs and even others go to 72hrs. The rate of updating the cache between current to 72hrs is what we call DNS propagation. When the process is complete everyone will now see your website. Because the caching updating differ between ISP servers, the propagation duration is therefore said to vary between 24hrs to 72hrs for DNS and IP addresses to completely propagate to all ISP and hence become usable.

Check your website if it is propagating in some ISP abroad

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How to Clear Caches

C:Documents and SettingsUser>ipconfig /flushdns

Windows IP Configuration

Successfully flushed the DNS Resolver Cache.

C:Documents and SettingsUser>nslookup cssites.com
Server:  ns1.mindspring.com

Non-authoritative answer:
Name:    cssites.com

C:Documents and SettingsUser>nslookup
Server:  ns1.mindspring.com

Name:    apache2-ugly.drpepper.dreamhost.com

Recommended Website to Check your DNS


(Generate full DNS report; DNS status, warning and errors with detailed information)

What’s my DNS? (Will show you a list of common name servers around the world, and tell you whether or not certain records related to your website have propagated to them)

intoDNS (will provide a complete list of your DNS records if available. If records are not yet available DNS propagation has not yet been completed fully)

Pingdom  (Check DNS errors and warnings with additional information)

propagatedyet.com (Check domain DNS propagation against its IP Address)

Checkdnspropagation.com (Check domain propagation and if all parameters agree to each other)

Contact Us

WebMagic at WebMagic Tanzania  

Location: Swahili Street, Sinka Court Building, Ground floor, Behind Bondeni Secondary School.

Office Tel#:  +255272546430
+25573 297 8002,

Mobile#: +255755646470

Email: info@webmagic.co.tz, info[@]webmagic.co.tz


Bank Payment by M-PESA Instructions:

  1. In the phone call screen type *150*00# and press call button
  2. Select # 6  – Financial services
  3. Select # 2 – M-PESA to Bank
  4. Select from the list # 2 – NMB
  5. Select # 1 to Enter Reference Number
  6. Enter Account no. (Our account no. is 40810111200)
  7. Enter amount  – Enter the amount you want to transfer
  8. Enter PIN –Enter your M-PESA secret code
  9. Press 1 to confirm–Enter no. 1 to accept the transfer

More payment options



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We have been in Tanzania web hosting industry for quite long since 2007.  We are therefore experienced enough to advice, troubleshoot problems quickly and provide instant support to customers

Website security

SSL Certificates, while the world of hosting is going on secured servers, some charge this service, we offer free with any hosting


Quick support service – 20 hrs a day and 2 hours response time (Guaranteed only for working hours and days)


Secondary backup when you website goes off, corrupt or hacked we will just restore the fresh copy from the secondary storage


Our prices are therefore based on this findings and we put very very affordable prices found nowhere else in Tanzania while maintaining the industry standard of services.


All Oof our web hosting plans from starter plan to premium plan offer you none questionable 99.9% uptime server


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We accept payment via bank deposit, MPESA, Tigo Pesa and Airtel Money

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