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

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28
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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 ...
24
votes
7answers
2k 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 ...
22
votes
4answers
26k 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 ...
18
votes
4answers
40k 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 ...
15
votes
7answers
2k 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 ...
15
votes
3answers
2k 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 ...
15
votes
3answers
13k 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
1answer
282 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
12k 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 ...
10
votes
2answers
457 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 ...
10
votes
2answers
2k 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 ...
9
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 ...
9
votes
1answer
296 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
8answers
11k 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: ...
8
votes
3answers
2k 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
4answers
356 views

How does DNS detect changes in nameserver IP address? [closed]

Suppose I have a domain such as example.com and I configure the domain's primary and secondary nameserver to be ns1.example2.com and ns2.example2.com. Questions: Does the IP address of the ...
8
votes
2answers
847 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
2k views

How to use Cloudflare and Namecheap email forwarding at the same time?

I want to use Cloudflare, and it requires that I use their nameservers. The problem is that I'm using some features from Namecheap like email forwarding, which will be disabled (if I didn't get it ...
8
votes
5answers
2k views

How do I check that a domain is available without triggering a grabber?

A few days ago, I checked whether a domain was available by tying the name in the web browser. Also host returned not found 3(NXDOMAIN) When I tried again today, some domain grabber had snatched it. ...
7
votes
2answers
205 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 ...
7
votes
1answer
76 views

Site very slow when viewed from china

My site is very slow when viewed from china. I have used this tool for testing: http://www.dotcom-monitor.com/WebTools/website-speed-test.aspx This is the result Shangai - waterfall only the ...
7
votes
1answer
200 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 ...
7
votes
5answers
167 views

Access site not working for the owner

I made a website, and 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 ...
6
votes
5answers
197 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 ...
6
votes
3answers
6k 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
2k 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
122 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
162 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
1answer
6k views

How to forward non-www to www. Using Godaddy DNS Manager

so I've set www.mydomain.com to point to ghs.google.com, which correctly loads my Google site, but if you go to mydomain.com, it doesn't redirect/forward to www.mydomain.com, it just hangs. is there a ...
6
votes
2answers
2k 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
3answers
18k views

What does an asterisk/star in traceroute mean?

The below is a part of traceroute to my hosted server: 9 ae-2-2.ebr2.dallas1.level3.net (4.69.132.106) 19.433 ms 19.599 ms 19.275 ms 10 ae-72-72.csw2.dallas1.level3.net (4.69.151.141) 19.496 ...
5
votes
5answers
1k views

DNS hosting better managed by Domain provider or Hosting provider?

Is it better to let DNS be managed by Domain Provider like GoDaddy/Namecheap or point the nameservers to hosting providers like Linode? What are the differences and disadvantages/advantages of both?
5
votes
3answers
3k 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
690 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
3answers
1k views

What is needed to add DNSSEC to my site?

What is needed to add DNSSEC to my site? Is it like HTTPS/SSL that I have to buy a certificate, or can I generate one myself to use? Is there any free way I can use DNSSEC or do I have to pay for ...
5
votes
2answers
655 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 ...
5
votes
2answers
95 views

Domain, Hosting and DNS management on 3 seperate providers - is this possible?

I wanted to know if its possible to do the following: Buy Domain from GoDaddy. Buy Hosting from HostGator. Buy DNS Management from DNS Made Easy.
5
votes
1answer
566 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). ...
5
votes
2answers
156 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 ...
5
votes
2answers
922 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
3k 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
214 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 ...
5
votes
2answers
120 views

Wildcard DNS record point to multiple servers

I would like to give my users their own subdomain like jack.xxx.com, james.xxx.com, and is using wildcard DNS record to do that. But now I would like to separate users into multiple servers, like ...
5
votes
1answer
167 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 ...
5
votes
2answers
754 views

302 Redirect causes garbage at end of Wordpress link in Facebook

When I try to link my Wordpress blog to Facebook, the url doesn't resolve properly. There's garbage appended at the end and Facebook is not able to retrieve information from the site. Happens in ...
5
votes
2answers
285 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
211 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
3answers
101 views

Websites sharing the same IP address

I have always been confused by the idea that multiple websites sharing the same IP address. I mean if there is a webserver out there that has an IP address. I can simply key in this IP address with ...
4
votes
8answers
1k 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
2k 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?