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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60 views

Redirecting specific URL from HTTPS to HTTP

Long time lurker, first time caller... I have a backend like admin.mysite.com which is able to use HTTPS (has a certificate installed, etc) - but that admin portal is a CMS backend for a number of ...
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1answer
200 views

Site speed: less KB image vs. less HTTP request

I have an interesting problem, I guess... First of all, I want to use sprites, to reduce the HTTP request on my site. That is because I know it's better for SEO and it makes the site faster, most of ...
3
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1answer
116 views

HTTP request to an API has been blocked from an HTTPS website

I am facing problem to call web service which is hosted over HTTP and I am calling web service from HTTPS domain. web service's .htaccess RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f ...
3
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1answer
27 views

What data does AddThis share with social media platforms?

If I have AddThis Share and Follow buttons integrated on my site, is there a way to tell whether the AddThis script passes any data (such as HTTP referrer) to the social networking sites upon page ...
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1answer
17k 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
352 views

Difficulty enabling caching on inherited site

I have been asked to work on a corporate website a previous employee had created. The site is on shared GoDaddy hosting. One of the first things I noticed (after the 140KB JPEG on the front page, ...
3
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1answer
263 views

Use - or misuse - of ETags

I'm using an application that sets ETags by md5()ing the URL. As I understand it, that's quite insane. In effect, it means that content for a specific URL won't be fetched anew ... ever. Unless a hard-...
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2answers
2k views

Pages that never finish loading: How to diagnose

Users occasionally complain, and we probably all occasionally see, a web page that never finishes loading. In Google Chrome the spinning circle will run forever, each browser has it's own version. ...
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1answer
212 views

Can a web-server be reached in other ways than through `HTTP` or externally?

A server hosting an application built in PHP: Can the server be reached in other ways than through HTTP or externally? Is GET and POST only populated through the HTTP protocol? Is HTTP headers, GET ...
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2answers
85 views

Google Webmaster Tools- Do I need to mark my SSL domain as a duplicate of my non-SSL domain?

I have a Drupal 7 site served exclusively using SSL with the "bare" domain (no www). But, I see that in Google Webmaster Tools, I can add the following: http://example.com http://www.example.com ...
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1answer
6k 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
3k views

Mod Rewrite - directing HTTP/HTTPS traffic to the appropriate virtual hosts

I have an Apache2 web server (v. 2.2.16) running on Debian hosting three virtual hosts. The first two hosts are HTTP only (server1 and server2). The last host is HTTPS only (server3). My virtual host ...
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1answer
70 views

AMP Pages on HTTP or HTTPS?

Next month Google Search will integrate AMP pages. These are pages that are designed to work rapidly on mobile devices even when using a poor network connection. Should I host these AMP pages on a ...
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2answers
2k views

What’s up with this 302 redirect to the same URL?

I was scanning my website for links that point to HTTP 301/302/303 redirects when I found a puzzling behavior of the curl utility. Consider the output from the following three commands: $ curl -I ...
2
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1answer
412 views

Trailing slash on Root folder - Is it possible to remove it without 301?

I have noticed something very strange on the site I'm working on. We currently only show http://www.example.com. The URL http://www.example.com/ (slash at the end) gets 301'd to http://www.example.com....
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1answer
8k views

Redirect HTTPS request to HTTP in Apache

Can an HTTPS request be redirected to an HTTP request in Apache? If so, how?
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3answers
109 views

Which content or HTTP status should return unused domain?

We've recently bought couple of domains but the content of the domains is still under development. Which content should we upload to the domains to tell search engines "There is currently nothing, ...
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1answer
4k views

http://www.example.com/http://www.example.com/ in Apache log?

I run a website, let's say www.example.com. On it I have a path and file, say www.example.com/path/file.html. The Apache log lists GET requests like: GET /path/file.html HTTP/1.1 Which is correct, ...
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43 views

if an HTTP page can be cached by proxy should I put “noindex” in the HTTPS version or not?

I have a Blog where each page have a static version served with dynamic url mysite.com/mypage?logged=false over HTTP, and a dynamic version served with dynamic url mysite.com/mypage?logged=true over ...
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1answer
82 views

406 Not Acceptable response

I'm getting a 406 Not Acceptable response from a GoDaddy Shared Apache server upon making the following request through posting a form directly from the browser: HEADERS: Host: url User-Agent: ...
2
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2answers
115 views

Incorrect Referring URLs - What can be the cause?

I am running a website with affiliate links . When the visitors of mydomain.com/page.php click on such an affiliate link, they are being sent to a link on a domain owned by the affilate network (...
2
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1answer
42 views

Cache HTTPS + SSL

A lot of resources claim that websites with HTTPS + SSL will not be cached. Is this true? If so, why? If so, can this be prevented? I heard that this depends on the browser, but that the most ...
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1answer
73 views

Why was 303 skipped in HTTP/1.0?

While looking back over HTTP response codes today I noticed that the 301, 302, and 304 response codes were defined in HTTP/1.0 but not the 303 response code. Does anyone know why the number 303 was ...
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2answers
429 views

Phpmyadmin http password security

Is my password sent unencrypted when using Phpmyadmin through http? If not, is there any downside using http compared to https?
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1answer
33 views

requesting for downloadable files via HEAD

I bet google is checking web pages via HTTP HEAD and HTTP GET request methods. So I'm thinking I should also allow proper header output for downloadable files from my website via HTTP HEAD request but ...
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2answers
416 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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2answers
159 views

HTTP code 403, access denied & Options -Indexes

at "webmasters.stackexchange.com" I already found a similar topic: Stop directory listing using .htaccess and redirect to good error page Options -Indexes ErrorDocument 403 /path/to/403.html ...
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1answer
729 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
235 views

What was this hack-bot trying to achieve via directory traversal?

I was walking through my server logs and the following kinda stunned me: ACCESS ERROR 404 from IP 62.112.152.161: Path: /index.php?page=weblog&env=../../../../../../../../etc/passwd%00 ...
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1answer
124 views

Google is not seeing my HTTPS website

I have a website and it is working with HTTPS, programatically when someone got to HTTP it forward him to the HTTPS version. My issue that I see that Google Search is not seeing my pages, the website ...
2
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2answers
3k 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 ...
2
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2answers
168 views

Deleted files still accessible without www in url

I have deleted all files and all hidden files off my server, there is nothing but log files which cannot be deleted. Ironically, files are accessible when nothing is there. Cache cleared, multiple ...
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1answer
534 views

Reduce HTTP Requests method for js and css

Is these way can Reduce HTTP Requests? multiple javascript files with & symbol <script type="text/javascript" src="http://yui.yahooapis.com/combo?2.5.2/build/yahoo-dom-event/yahoo-dom-event....
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1answer
2k views

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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2answers
818 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 ...
2
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3answers
2k 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 ...
2
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1answer
195 views

How to redirect HTTPS to HTTP behind proxy (CloudFlare)

I want to redirect HTTPs to HTTP, I tried following code in .htaccess file Options +FollowSymlinks RewriteEngine on RewriteCond %{SERVER_PORT} ^443$ RewriteRule ^(.*)$ http://www.yourdomain.com/$1 [R=...
2
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1answer
70 views

http header if not modified help

I am having a little trouble with sorting out my HTTP headers for my sites. I am currently setting up Varnish on my server and so trying to get everything working correctly. All my sites are ...
2
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1answer
42 views

Is granular http logging for an application handled at the application level or the http server level?

I need to log all requests coming into the server. Typical things you would get from Apache log formatting or IIS. I am using a WSGI standards based server, Apache mod_wsgi, gunicorn, Tornado. It ...
2
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2answers
60 views

Caching a changing site

I run a website where the static content changes at least 4 times a week and I'm trying to figure out the best header arrangement to use. Currently I have all caching related headers in use. I have ...
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2answers
112 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?
2
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2answers
171 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
60 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
92 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 ...
2
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1answer
234 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
1k 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
94 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 ...
2
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1answer
381 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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0answers
14 views

How lenient should I be when checking the range header parameters?

I made more of my URLs now accept the HTTP range request so that only user requested bytes of the document can be parsed. This is the range header my code supports: range: bytes=s-e where s is the ...
2
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0answers
207 views

How to filter GET requests with Nginx, keep getting 504 after [GET] “/manager/html”

I was recently unable to reach my website, receiving a 504 time-out error instead. I checked the logs and found a GET request for /manager/html. I realize this was a failed attempt to reach a control ...