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Why does https://domain-name.example work but www.domain-name.example throws 404 error


Why don't self-closing script elements work?Recommended way to embed PDF in HTML?How can I select an element by name with jQuery?How do I remove the space between inline-block elements?How does Zalgo text work?Why does HTML think “chucknorris” is a color?Why does this CSS margin-top style not work?What is the purpose of the “role” attribute in HTML?Why does CSS work with fake elements?Is it possible to apply CSS to half of a character?






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Why does https://vivian-duong.gitlab.io work but www.vivian-duong.gitlab.io throw an error?










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    -2















    Why does https://vivian-duong.gitlab.io work but www.vivian-duong.gitlab.io throw an error?










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      -2












      -2








      -2








      Why does https://vivian-duong.gitlab.io work but www.vivian-duong.gitlab.io throw an error?










      share|improve this question
















      Why does https://vivian-duong.gitlab.io work but www.vivian-duong.gitlab.io throw an error?







      html web dns






      share|improve this question















      share|improve this question













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      share|improve this question








      edited Mar 25 at 15:53









      Patrick Mevzek

      4,40891931




      4,40891931










      asked Mar 25 at 0:49









      vivianvivian

      1208




      1208






















          2 Answers
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          0














          Here the domain is gitlab.io. But vivian-duong.gitlab.io is the sub domain. The www prefix doesn't work before sub domain. You have to add a CNAME to vivian-duong.gitlab.io to make it work.






          share|improve this answer






























            0














            Because there is no web server configured to listen for requests for www.vivian-duong.gitlab.io.



            It's the same as if you requested non-existant-name.vivian-duong.gitlab.io. As far as the web server is concerned, it's a request for something it doesn't have.



            Someone needs to setup the web server to listen and respond to requests for www.vivian-duong.gitlab.io.



            DNS is resolving to the correct IP address, however the web server isn't configured to respond to that host header.






            share|improve this answer























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              0














              Here the domain is gitlab.io. But vivian-duong.gitlab.io is the sub domain. The www prefix doesn't work before sub domain. You have to add a CNAME to vivian-duong.gitlab.io to make it work.






              share|improve this answer



























                0














                Here the domain is gitlab.io. But vivian-duong.gitlab.io is the sub domain. The www prefix doesn't work before sub domain. You have to add a CNAME to vivian-duong.gitlab.io to make it work.






                share|improve this answer

























                  0












                  0








                  0







                  Here the domain is gitlab.io. But vivian-duong.gitlab.io is the sub domain. The www prefix doesn't work before sub domain. You have to add a CNAME to vivian-duong.gitlab.io to make it work.






                  share|improve this answer













                  Here the domain is gitlab.io. But vivian-duong.gitlab.io is the sub domain. The www prefix doesn't work before sub domain. You have to add a CNAME to vivian-duong.gitlab.io to make it work.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Mar 25 at 1:30









                  Adnan TokyAdnan Toky

                  722412




                  722412























                      0














                      Because there is no web server configured to listen for requests for www.vivian-duong.gitlab.io.



                      It's the same as if you requested non-existant-name.vivian-duong.gitlab.io. As far as the web server is concerned, it's a request for something it doesn't have.



                      Someone needs to setup the web server to listen and respond to requests for www.vivian-duong.gitlab.io.



                      DNS is resolving to the correct IP address, however the web server isn't configured to respond to that host header.






                      share|improve this answer



























                        0














                        Because there is no web server configured to listen for requests for www.vivian-duong.gitlab.io.



                        It's the same as if you requested non-existant-name.vivian-duong.gitlab.io. As far as the web server is concerned, it's a request for something it doesn't have.



                        Someone needs to setup the web server to listen and respond to requests for www.vivian-duong.gitlab.io.



                        DNS is resolving to the correct IP address, however the web server isn't configured to respond to that host header.






                        share|improve this answer

























                          0












                          0








                          0







                          Because there is no web server configured to listen for requests for www.vivian-duong.gitlab.io.



                          It's the same as if you requested non-existant-name.vivian-duong.gitlab.io. As far as the web server is concerned, it's a request for something it doesn't have.



                          Someone needs to setup the web server to listen and respond to requests for www.vivian-duong.gitlab.io.



                          DNS is resolving to the correct IP address, however the web server isn't configured to respond to that host header.






                          share|improve this answer













                          Because there is no web server configured to listen for requests for www.vivian-duong.gitlab.io.



                          It's the same as if you requested non-existant-name.vivian-duong.gitlab.io. As far as the web server is concerned, it's a request for something it doesn't have.



                          Someone needs to setup the web server to listen and respond to requests for www.vivian-duong.gitlab.io.



                          DNS is resolving to the correct IP address, however the web server isn't configured to respond to that host header.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Mar 25 at 1:46









                          Terry CarmenTerry Carmen

                          2,7001819




                          2,7001819



























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