HTTP Stands for "Hyper Text Transfer Protocol", and is the protocol that applications use to access documents/webpages/data from the world wide web.

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How to tell Google to stop crawling my website via IP?

After a database server migration, I've noticed that GoogleBot started getting errors when trying to crawl my site. The reason seems to be that it is hitting my site via IP address (and due to my ...
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3answers
1k views

Why is a # sign added to the end of URLS?

Note: I'm asking this from the perspective of the site developers (trying to help someone there). not as a user. Please don't forward this to superuser.com. It's a server admin question. Have a look ...
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2answers
96 views

Should I make a page for every HTTP error?

I know that it is important to have an error document for 404, 403, 401 and 500. But what others, if any should I make to be completely sure that users do not see the default apache error page?
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2answers
89 views

How can I prevent HTTPS on another domain from wrongly showing on my HTTP-only domain?

So, I have a blog at domain.com. This blog is HTTP-only because I would gain almost nothing from adding SSL support. I have a web service now that I want to enable SSL support on that runs on the same ...
2
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1answer
55 views

Is this considered to be “Internal Near-Duplicates”?

Some people generate the same pages with a slight variation in keywords, title, country name, region name, etc... This is typically considered to be "Internal Near-Duplicates." I have seen a website ...
2
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1answer
71 views

Need a study about average latency due to HTTP request and server processing time when downloading images that are a part of DOM

I'm writing a thesis about css sprites and need to know the of the average HTTP request overhead when establishing a connection to download an image file that is a part of DOM. We conducted a study ...
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2answers
1k views

https:// search results appearing on Google for purely http:// site

I started weeding through my site's search results from Google today, using a site: search, to determine if there are any links that cause 404s and thus need redirecting. To my amazement I noticed ...
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1answer
149 views

http request terminating early

I noticed that on some of my sites, images were occasionally not getting downloaded fully. After a bit of investigation it appears that it is not restricted to images - .css, .js etc were also ...
2
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1answer
778 views

Avoid the login popup when using http-auth

I have an Apache. Under the DOCUMENTROOT is a folder with an .htpasswd file for http-auth. If I open the browser and request the content in the folder I get an Popup to login. Is there a way to avoid ...
2
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1answer
515 views

Using HTTP (insecure) ad providers on HTTPS (secure) site

As more and more browsers adopt stringent checks around preventing insecure content served up on secure sites, there is impact on the use of ad networks which in many cases don't support the secure ...
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1answer
255 views

Recommendations on how to validate an web server?

Does anyone know of any tools that can be run against web server to determine how compliant the server is with the various HTTP specs?
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2answers
80 views

Verifying that a user comes from a 'partner' site?

We're building a Drupal module that is going to be given to trusted 'corporate partners'. When a user clicks on a link, he should be redirected to our site as if he's a logged in user. How should I ...
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3answers
148 views

HTTP occurring twice in a URL

I ran into a website today that had two URLs and I'm completely stunned. The website, not to be specific, has a full address of http://example/cat/http://example/dog. I will say that the first part is ...
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2answers
82 views

HTML: Images always getting reloaded from server

I am finding that my web pages' images are always getting loaded from my server, even though they never change. Since these are images, not pages, I can't include an expiration date for them... How ...
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3answers
96 views

Confused about domain names

I am confused about the difference between http://www.example.com and http://example.com, is that true "www" is actually the subdomain of domain example.com? Do people usually redirect from ...
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4answers
48 views

How do I know whether a URL returns an HTTP 404 status code?

For any given URL, how can I (dis)confirm whether it returns an HTTP 404 status code? I found this tool but isn't there a cleaner, more natural way to find out, independently of other people's tools? ...
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2answers
1k views

Lots of HTTP HEAD requests originating from porn sites

The access log on my web server has a ton of HTTP HEAD requests coming from porn sites. What are HEAD requests and are they doing something bad with my site? Here is an excerpt from my log: (valid ...
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1answer
88 views

Are there any differences between URLs with and without “www” and “http://”

Are there any differences among these addresses? www.example.com http://www.example.com example.com
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1answer
150 views

410 permanent delete not working

I've deleted a web page permanently and also added this rule in the bottom of my .htaccess: RewriteRule ^paysignet-payment-gateway-features-and-benefits.html$ - [G,L] But this url of this page: ...
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2answers
7k views

Where does the HTTP referer “applewebdata” come from?

My site uses a web stat service like Google Analytics, it uses a piece of javascript code to log what pages the visitor has visited and the refer url of each visit. I got some referer "applewebdata", ...
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2answers
88 views

Search for my web site returns HTTPS results

My home page is set to Google and Google adds ?gws_rd=ssl to it. When I type search term form my site into search box Google returns bunch of indexes (different pages within my site) that starts with ...
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1answer
145 views

Videos from Youtube/Vimeo not displaying in iframes

I was giving a webinar about HTML today in Brackets. When showing how to use iframes, all my students managed to insert Google Maps using iframes but no one was able to make the YouTube and Vimeo ...
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2answers
63 views

The actual difference between styesheet in the header and a seperate file

I have always been taught to have all of the CSS in a separate file that is referenced from the head of the page. Reading this article, the author is talking about making the Guardian website ...
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2answers
117 views

http requests, using sprites and file sizes -

Hi all I'm in the process of finding out all about sprites and how they can speed up your pages. So I've used spriteMe to create a overall sprite image which is 130kb, this is made up of 14 images ...
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1answer
263 views

Is it possible to invalidate cache when the referrer adress is different?

Suppose I serve an image and if someone visits from a forum then I want it to download that image. If they visit again from the same forum then I want it to use cache, but if they visit from another ...
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2answers
909 views

cname forward from https to http

We are migrating web host and I wonder if it is possible in the migration phase to do a CNAME forward from https://address1.com to http://address2.com. Would the certificate still work even if the new ...
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2answers
162 views

What is the syntax for using 410 status for deleted pages?

I want to permanently delete some pages in my site using 410 status. I'm not sure of correct syntax of removing pages using 410. I've found one syntax and I've a page( duplicate product page content) ...
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2answers
169 views

why is having (or excluding) 'www' in the URL affecting how my site displays to users?

I am cleaning markup on a website for my first customer. I did not build the site; I want to remove the table-based design and replace it with proper CSS, before I add a shopping cart to the site. ...
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1answer
175 views

Ways for client to include page ID in query?

I'm no expert on web development, and need to find a way to let the browser call a PHP routine on the server with the current document ID as parameter, eg. http://www.acme.com/index.php?id=1 I then ...
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1answer
88 views

Could too many HTTP requests using AJAX result in browser crashes?

We are running an ASP.NET web application, and recently we received a lot of crash reports from users. It sometimes crashes the Chrome browser, and sometimes it loads indefinitely. This is how our ...
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1answer
65 views

Right HTTP code for adult content block

I have a site with User Generated Content. Although only a small amount of it is Adult content, part of that has become popular in search engines in foreign languages. To avoid being classified ...
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1answer
225 views

What is HTTP Method PROPFIND used for?

I notice a series lines never seen before on my server access log that runs like this consecutively within the same one second: PROPFIND /images/flag.jpg HTTP/1.1 405 493 265 511 - LibreOffice ...
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1answer
58 views

Shared web hosting issue where Google is incorrectly indexing https content from another website

I am using shared hosting from a reasonably well known Australian web hosting company and have come across an unusual issue where Google is indexing pages on my website from another website on the ...
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1answer
770 views

HTTP/HTTPS duplicate content 301 vs canonical

I thought I would ask a question as the amount of different sources that say this is right or that isn't right is unbelievable. Let me tell you my situation, at the moment, my boss wanted me to add ...
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1answer
281 views

google chrome : http authentication issue on iframe

I have an HTML file with 2 links both links are in an iframe to load the contents inside the iframe. I have two protected directories one on the same server and other on another server. If you click ...
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1answer
1k views

cPanel Monthly Bandwidth Traffic - HTTP Traffic Extremely High

So I have a website/blog which I have hosted with a service which is offering me 2000mb of monthly bandwidth traffic. I recently have started getting a lot of traffic, or I suppose, enough to push me ...
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1answer
302 views

CSS Sprites: Are they worth the trouble?

I can't help but wonder whether CSS sprites are very much over-used. First of all, if I stick all my images in a single file it makes an aweful lot of empty space. I know, that shouldn't make an ...
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1answer
63 views

Is it possible for a web-server to send more files than requested for, and have the browser accept them?

I've created a basic web server for a school project, and it serves static content without a problem. I thought of having the server parse all htm/html files for links to .js/.css/image files, and ...
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2answers
157 views

Quick Filesharing Web-App

I need to provide ftp/http services for a group of users such that: each user has his own password protected area where he can upload files each user can create user accounts and passwords for the ...
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1answer
68 views

With the following settings shown here, will there be any caching in Firefox?

browser.cache.disk.enable = false browser.cache.memory.enable = false network.http.use-cache = true With the following settings above, will there be any caching in FF? Does the disk.enable and ...
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1answer
52 views

What can cause the size of HTTP response to vary for the same response body?

I am trying to understand why the web server behaves differently for the following bad requests: Method Proto Status Req Body Res Referrer ...
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0answers
8 views

Setting an expiry date or a maximum age in the HTTP headers [duplicate]

I just finished a website that I designed and submitted it to Google PageSpeed Insights for performance reviews, and this is the results I got: It says I need to set expiry date or a maximum age in ...
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0answers
30 views

Why is nat required when proxy is enough? [closed]

My machine is connected in a local lan. to connect to the internet the traffic goes through proxy server. my understanding of proxy server is that it sends the request on behalf of the original ...
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0answers
159 views

Can I use both Digest and Basic Authentication on the same directory in Apache?

The reason I would want to do this is to support very old browsers (e.g. IE 6) that does not implement the more secure Digest method. If all new clients advertise the types of authentication they ...
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2answers
197 views

Google Analytics when 404 handler is used as 'mod_rewrite'?

I'm consulting on a web site which in order to provide clean URL's uses the 404 handler to catch what would otherwise be a 404 and serve the correct content. In case that's not clear the 404 handler ...
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2answers
3k views

How to forward a [sub]domain to another address? (not just HTTP!)

I have bought domain1.me from GoDaddy... (yeah, I know... but ME domain registrars seemed quite hard to find...) I'm mainly hosted at 1and1. I have registered subdomain sub1.domain1.me and redirected ...
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2answers
3k views

HTTPS To http redirect issue. How to overcome?

Have already seen suggests on how to rewrite https to http. currently using this technique : RewriteCond %{SERVER_PORT} ^443$ RewriteRule ^(.*)$ http://www.mysite.com/$1 [L,R=301] RewriteRule ^(.*)$ ...
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4answers
1k views

Best way to have both HTTP and HTTPS communication in a web application?

I am considering using both HTTP and HTTPS in a web application and I am looking for tips to accomplish this best. The application will run under Tomcat. I have also seen the following about HTTPS ...
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1answer
1k views

IP Address headers (Remote_Addr) - When is this header sent by the browser?

I want to know when a browser includes the header - Remote_Addr in the HTTP request. I observed the request sent by the browser on loading stackoverflow.com, in the web console window of Firefox. ...
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2answers
353 views

Is 301 redirect sufficient to solve WWW and HTTP/S duplication?

I was reading about this article - SEO preference for WWW or HTTP:// protocol redirection? Do www websites rank better than NON-www? I have same problem but I needed a help on this further. What ...