DNS is the Domain Name System, a hierarchical, distributed database where the keys are domain names.

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25
votes
4answers
1k views

Does registering a domain for 10+ years help search rank?

I've heard that registering a domain name for a very long time, say 5 to 10+ years, can help with your search rank. This seems at least plausible to me, since a fly-by-night, massive domain name farm ...
20
votes
7answers
1k views

Registrar with good security, DNS hosting, and DNSSEC and IPv6 resolvers?

I'm looking to move my domains away from GoDaddy, but I'm having a tough time finding anyone with comparable features at a (even remotely) similar price. I've looked at the usual suggestions ...
14
votes
4answers
28k views

Is there any way to redirect one domain to another via DNS settings keeping the path information?

For example, my domain is example.com and when someone navigates to example.com/sample/page.htm, I want it to redirect to test.com/sample/page.htm. I know that this can probably easily be done using ...
13
votes
7answers
1k views

Should I use a domain name registrar's free DNS hosting, or host DNS servers with another company?

Should I use my domain name registrar's free DNS hosting service, or host DNS servers with another company? (or both?) What are some advantages to using a DNS hosting company separate from the domain ...
12
votes
3answers
8k views

How can I get a history of DNS registration information?

Is there a canonical place that stores DNS registration information? For example for a domain that has changed hands a few times, can I see a listing of the owner information* over time and when the ...
11
votes
4answers
14k views

Using multiple A-records for my domain - do web browsers ever try more than one?

If I add multiple A-records for my domain, they are returned in a round robin order by DNS servers. Example: 1.1.1.1 A example.com 1.1.1.2 A example.com 1.1.1.3 A example.com But how does web ...
11
votes
1answer
235 views

Is it time to add IPv6 access to my websites?

I have several dedicated servers and VPS servers, and some of those are at companies that have provided me with native IPv6 blocks (in addition to the IPv4 IP addresses). Does it currently make sense ...
10
votes
3answers
780 views

What is the safest way to search for domain names availability?

I am victim of Domain name front running. I searched for domain names on some sites & I lost those names soon. Now, what is the safest way to search for availability of domain names ? Using ...
9
votes
2answers
314 views

How many domains to split components across?

I understand how splitting components across domains can maximize parallel downloads, and enable you to have cookie-free static content domains, but since there's a time cost for each domain lookup ...
9
votes
1answer
245 views

Is an externally-hosted subdomain a security risk?

A company I've been developing a web site for wants to keep their current domain, which is something like company.parentcompany.com. Because we wanted to use a different CMS, the parent company ...
8
votes
2answers
3k views

How long does propagation of newly registered private name servers typically take?

I have an account with Hostgator, and have registered private name servers (ns1.mydomain.com and ns2.mydomain.com). How long should I expect to wait for those changes to take place? Should my ...
8
votes
3answers
8k views

How can I create an SPF record on my 1and1.com hosted domain?

Emails from my domain (hosted at 1and1, and using Google Apps Premier edition) have sporadically been going to recipients' spam folders lately. I did some research, tested, and found out that I do ...
8
votes
3answers
800 views

Is it okay to have no A records for a domain?

There is one domain I'm using for email only. MX records are set up and everything works. The A records for @ and www are pointing to a machine, which just redirects to google.com. I am now wondering ...
8
votes
2answers
157 views

What is the maximum number of DNS A-records you can use on one domain?

Is it correct that there is no limit to how many DNS A records can be set on a domain? My boss asked me this and it made me curious, I can't find anything online.
8
votes
2answers
796 views

How to find domain registrar and DNS hosting with good DNSSEC support?

Simplified problem I want to buy a domain and make a website that is fully secured with DNSSEC. I want to make sure that only the one right SSL certificate could be validated by the browsers and all ...
7
votes
6answers
142 views

access to site owner not working

I made a website it works for everyone except for the site owner, who cannot access the site. He gets a server could not be found error. I went to his house and the issue occurs for all of his devices ...
6
votes
3answers
2k views

How can I host a website on a dynamically-assigned IP address?

I recently upgraded my internet to the point that it is much faster and more reliable than my current webhost. I would like to move my current domain to be hosted at home, but my IP address is ...
6
votes
3answers
1k views

How to transfer domain from Godaddy to another provider

I'm currently using godaddy for all of my company domains, and I'm very unsatisfied with their service, specially with their site, so we are trying to migrate those domains to another provider. The ...
6
votes
1answer
110 views

Process of automating domain registration?

I have a website where users register domain.com/user/username. I'd like to add a feature where users can search for and purchase a domain name that maps back to that URL. I'm not sure how big of a ...
6
votes
2answers
140 views

How to test the migration of a domain without actually changing the domain?

I have a somewhat complicated situation. We have a blog let's say at myblog.com and it is running fine. However, we now want to cut the budget and use a free hosting service isgreat.org. The service ...
6
votes
2answers
138 views

Does geographic location of domain registrator matter?

Does it matter where I register my domain geographically when I'm planning to change nameset (nameservers) to a server in my target area? Example Target audience: USA Server location: USA Domain ...
5
votes
8answers
7k views

Is it possible to find all subdomains for a certain domain?

a client of mine is currently hosting a web-project on one of his servers with some sub domains for previews, testing etc. Those are really hard to guess sub domains like: ...
5
votes
5answers
138 views

Reclaim snatched domain name

I'm looking for options to get back a domain name that just expired and was re-registered by an unknown link farmer. Between extended holidays, bank and hosting provider's opening hours and me the ...
5
votes
2answers
927 views

TXT vs SPF record for Google servers SPF record, either or both?

According to Google’s documentation, https://support.google.com/a/bin/answer.py?hl=en&answer=178723 It clearly says Create a TXT record containing this text: v=spf1 include:_spf.google.com ~all ...
5
votes
1answer
122 views

CNAME: does a cname change the url that the browser displays?

I have a web site www.somewhere.com and I want the alias fr.somewhere.com. I set up a CNAME record for www.somewhere.com alias fr.somewhere.com. When a user types in http://fr.somewhere.com in their ...
5
votes
1answer
473 views

How can my site detect mobile phones and switch visitors to a mobile Domain?

My Question is that when user enter the website: http://www.example.com then they will just go to automatically to http://www.example.mobi how can i do this .. is their any technique behind that. ...
5
votes
1answer
168 views

How do I leave mail at the registrar while serving the web from host?

Client's domain is registered with GoDaddy where they have a mail-only plan at the moment. Now web hosting has been set up elsewhere and we need to point web service to the new host while retaining ...
5
votes
2answers
606 views

Redirect/rewrite dynamic URL to sub-domain and create DNS for subdomain

I have created an application in PHP, I would like to re-direct the following URL to corresponding sub-domain. Dynamic URL pattern: http://mydomain.com/mypage.php?user_name=testuser I wish to ...
5
votes
1answer
2k views

DNS A Records with 1and1 and Heroku

I have a domain name registered through 1and1.com that I'd like to point to my Heroku app (mydomain.com and www.mydomain.com). Heroku's instructions ...
5
votes
2answers
242 views

Website on S3: Multiple subdomains to one Bucket?

I'd like to host a website on Amazon S3. What's the best practice to make a site accessible from both example.com and www.example.com?
5
votes
0answers
183 views

Registering single letter domain, selling subdomains? [closed]

I am about to purchase x.yz or a.bc (not those, but same lengths). I want to sell subdomains like rst.x.yz to the public, and would be able to run my own DNS servers for it. Is there a system (iPanel ...
4
votes
8answers
890 views

Alternative to GoDaddy? [closed]

For a number of reasons I'm thinking about slowly moving my domains away from GoDaddy. Unfortunately I don't know of a good alternative, and am looking for a recommendation. To match what I ...
4
votes
3answers
1k views

Add domain to VPS

I have a VPS server running Ubuntu 11.04 with webmin installed on it. How can I add my example.com domain to my VPS like the way we do on shared server via web panels such as cPanel and etc? Thanks.
4
votes
1answer
149 views

Find the IP address of expired domains

I want to know the previous hosting IP address of an expired domain. Is there any way find this?
4
votes
1answer
2k views

Point domain to Amazon EC2 Server

I just got a domain from a rather suspicious registrar and I want to point that domain to an EC2 instance from Amazon AWS. I already have an elastic IP ready and just need to point the domain to it. ...
4
votes
4answers
6k views

How to host a single website on multiple servers?

I'm planning on releasing an iOS app that downloads video from my server. If hundreds of people on the launch day try to do this, then my website and the services that my server provides will clearly ...
4
votes
2answers
457 views

What are CNAME and A DNS Records?

What are CNAME and A DNS records? What are they used for? What is the difference between the two? Edit: Where does the CNAME record exist? On the server or with the domain registrar?
4
votes
4answers
242 views

Nameservers and DNS - Appropriate Steps to Move to A VPS?

I bought a VPS and I am trying to transfer my domain over to the new server, I took two steps so far, but I don't think I did it quite right as its been 24 hours and most all DNS check sites still ...
4
votes
1answer
51 views

Is there a point to redirecting our collection of purchased domains?

We have 200+ domain names that we have purchased to prevent them from being poached and misused. These additional domains are not indexed, crawled or linked to. Is there a point to actually setting ...
4
votes
2answers
455 views

Can I have a backup name server?

Is it possible to have a third backup name server in case the first two fail? Recently I had a site go down for about an hour when a CloudFlare datacenter went down. We have the option of setting a ...
4
votes
2answers
389 views

Does the “canonical name” in DNS make any difference to search engines?

Some of our sites are setup with an "a record" to an IP address and some are setup as a cname of a server that then has an "a name" to the same server IP. I want it to be consistent. Which is the ...
4
votes
1answer
349 views

Does google contribute ranking from cdn.example.com to example.com?

Background From my understanding, http://mywebsite.com/image.jpg, can help the ranking of http://mywebsite.com in a search engine, such as Google (obviously the search engine of primary concern). ...
4
votes
1answer
286 views

I have an old domain that I'm retiring. How do I set up a permanent redirect from the old domain to the new one?

I originally posted this as one of the defining questions for the site so I thought I'd ask it again. Currently I have DNS for both domains pointing to the same place but I'd like to set up a ...
4
votes
2answers
67 views

http keep-alive with multiple A/AAAA records

I'm trying to estimate the performance impact of publishing several IP-addresses for a given web-site hostname. Do browsers choose addresses in a random order? Do they use the same address for all ...
4
votes
1answer
1k views

Why won't Webmaster Tools let me set a preferred domain? (says to verify, but it should already be)

I've got a domain that I apparently forgot to set a preferred domain for, so I just tried to do it. Webmaster Tools instead popped up a little box: Part of the process of setting a preferred ...
4
votes
1answer
139 views

Two name servers?

I was told by my domain registrar that they require two name servers per domain name. I want to host my own DNS (to try it out, this isn't an important website) on my own server. I only really need ...
4
votes
1answer
443 views

Google CDN or Akamai

We combine and minify our JS with Minify - the combined JS is then cached on Akamai. I'm suggesting to my supervisor that we put JQuery and JQueryUI on Google CDN and take it out of our combined JS. ...
4
votes
2answers
177 views

DNS MX and NS entries

I was wondering about my domain and if next is afordable. First of all this is my "architecture": Domain registration at GoDaddy.com Hosting at Dreamhost mail at google apps Until now I setted ...
4
votes
1answer
100 views

What percent of visitors should click on the next page before you enable prefetching?

Mozilla Firefox and Google Chrome support prefetching via an HTML tag: <!-- in chrome --> <link rel="prerender" href="http://example.org/index.html"> I suppose it is always worthwhile ...
4
votes
1answer
598 views

enable email on Godaddy when using Zerigo on Heroku hosted app

A little recap of what I have done ... and then my questions Q1, Q2 and Q3 1 - I developed a RoR app that I deployed on Heroku. biowatts.heroku.com 2 - I bought a domain name at GoDaddy: ...

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