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Category Archives: Internet
Canonical links, SEO news
Google, Yahoo and Microsoft have togheter announced the support of a new tag for web development where you can specify your canonical links. The point of this is to enable webmasters themselves to “point out” which page contains the original copy of certain information in case multiple copies are shown on the same page. In essence, if multiple links into the website can display the same content you now have the ability to point the search engine to the page that you would rather have indexed.
The code is quite simple, on each page where the information can be found simply add the following tag:
<link rel=”canonical” href=”http://www.example.com/destination.php” />
This will inform the search engine of which of the pages is the true origin of the information and which are only redundant copies. For more detailed explenation of the new tag visit the Official Google Webmaster Central.
I bet many CMS authors right now are digging into their code to add support for this new convention.
2009 – the year of the browsers
In 1989 we had zero web browsers as we know them today, allthough just about to be invented around the corner. In 1999 we had two web browsers fighting a death match, Internet Explorer and Netscape Navigator – a fight with Netscape cleverly lost by dying and coming back several open source reincarnations of which Firefox of course is the most well known today. 2009 is turning out to be yet another battle year for browsers, this time many more of them! We have (in no special order) the newcommer Google Chrome fighting Firefox and Internet Explorer (mainly the PC-side). We have Opera who has cut out a piece of the action on several systems but shine mostly in portable devices. Safari is ruling the Macintosh but is starting to get some interference from Firefox.
Well that is now, what is next? I ready a post about current state of browser development, and many of the major browsers have a beta our that will maybe go live sometime during the next year. While this might be very good news for home users I am sure it will mean alot of work for someone like myself who create on-line applications. There used to be a lot of tuning to make web pages and applications look and work the same on the old “two major browsers”, now we have at least 5! Unless the browser developers makes a great effort to follow the rules of the standards each web page have to compensate for how a particular browser parses the data.
In the past Internet Explorer have seemingly intentionally ignored several standards in favour of making programmers like myself forced to make pages look good on their browser. Internet Explorer is afterall the dominating browser and it have to work. The question is if this strategy is allowed to continue. I really hope for the sake of us programmers that while there are five new browser versions about to be released that several of them will render the basic pages using the same rulset.
Posted in Internet, Programmering
Tagged 2009, Browser, Chrome, Firefox, Google, Internet Explorer, Netscape, Opera, Safari, Web
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Zombie safe homepage
It’s been a while since I had time to post some useful information here, meanwhile so you don’t turn into zombies or even worse get attacked by them here is some helpfull code from Google themselves:
http://www.google.com/robots.txt
And, just in case they change the file, here are the top lines from their robots.txt:
User-agent: zombies Disallow: /brains User-agent: * Allow: /searchhistory/ Disallow: /news?output=xhtml& Allow: /news?output=xhtml Disallow: /search ...
CSS layout made easy
While it hurts my nitpicking handcodeing image to admit it, some frameworks are to good to ignore. One of them I found recently in Google BlueprintCSS. It’s a very flexible framework and with a license “you cannot refuse”.
I”ve used to code all CSS and HTML by hand (still!) and it is getting pretty tiresome to stumble over the same defects in every design I make. To pressed for time I’ve never developed a framework of my own, rather just copy and pasted bits and pieces from my old code that I knew was working.
There are many other CSS frameworks out there but somehow I fell for Google Blueprint though I have far from done an extensive testing on them. If anyone have found any other framework very good and flexible please post a comment, I’d love to hear it.
Google opens Knols – wiki on ads?
Google opened the doors for the public to the beta Knols. While Knols are very similar to Wikis there are two main overall design differences between the two. First of all while Wikis are “community authored” with a group of people behind most articles the Knols are author dependant. Whoever posts a Knol first becomes the author and moderator of the article. Secondly Knols have a direct interface to Google AdSense making it easy for the author to include ads in the articles, something few community based wikis allow (at least not to the benefit of the authors).
When writing Knols you have several options for each Knol you write (and by the way, Google defines “Knol” as a unit of Knowledge).
As an author you can choose to inlcude other authors or have an open (or moderated) author system much like the Wikis.
The information published in a Knol can be published under three different licenses that the author may choose from; “CC Attribution 3.0″, “CC Attribution-Noncommercial 3.0″ and finally “All rights reserved”.
While I do not believe the wikis are in danger (and specifically the Wikipedia) the Knol does open up much more towards companies who might up until now found it pointless to give their information away for free. Being able to publish copyrighted material without losing control over it and at the same time gaining from AdSense published on those pages might interest some.
Small update on Google Analytics
I’ve used the code from my previous post on almost all my sites now a couple of days and all the statistics are still working and I no longer experience any slow loading times using Firefox with NoScript. Until I see either a change in Googles code (that they use a single domain for javascripts) or a new version of NoScript (that makes an exception for Google-related domains if you allow google-analytics.com) I will keep this code as it greatly improves the performance of my website.
Posted in Internet, Programmering
Tagged Firefox, Google, Google Analytics, JavaScript, Load time, NoScript, Script
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Firefox profiles – tips & tricks
With the latest version of Firefox I’ve found myself using more and more Addons for specific purposes. I also started “saveing” open tabs when closing, to easier get back into my blogging / working again. Due to these reasons I found myself wanting a “work Firefox” and a “casual surfing Firefox” (mainly for other people who sometimes use my computer so they don’t “mess” with my work Firefox).
Luckily the profile system in Firefox can solve this quite easily! If you want multiple profiles within the same login on a computer follow these simple steps:
1: access the profile manager
You have to add at least one more profile, or however many you want on the same machine. To do this run firefox with the following argument: –profilemanager
The easiest way to do this is to change the shortcut destination like so:
“C:\Program Files\Mozilla Firefox\firefox.exe” –profilemanager
Please note that the path should not be changed, only the addition of the profilemanager argument.
2: create new profiles
Start Firefox using this command and simply choose “add profile” and name the profiles you want.
3: Create shortcuts to profiles
When you have the profiles you want you can either always use the profile manager (or check the “always ask” checkbox) or you can create custom Firefox shortcuts that opens a particular profile with the -d [profile] argument. For example, to start the defualt profile use the following command:
“C:\Program Files\Mozilla Firefox\firefox.exe” -P default
You can now copy the shortcuts and make a shortcut to each profile you want easy access to. Each profile will be totally seperate with own AddOns, History, Tabs and Settings.
Firefox 3.0 follow up
After a few weeks of Firefox 3 usage I must say I now do not miss Internet Explorer at all. With the add-ons available I’ve managed to customize my web browser exactly how I want it (only a few innovative ideas I have myself are missing).
It’s proven it’s stable and fast, I’ve used it on a mixture of laptops and operating systems (Ubuntu 8.04 and several Windows versions) and everywhere it has worked as perfect as could be expected.
As I earlier argued it has several advantages over Internet Explorer and I will now go in depth on one of the advantages: AddOns.
Firefox AddOns are programs that extend the functionality of the web browser and I will rank the best I’ve come across so far.
Recommended addons
Everywhere I install Firefox I always install 2 particular AddOns, Adblock Plus and NoScript. These two make surfing the web safer and faster and despite NoScript requering some interaction when visiting new sites I do not find this bothers me at all. The ad-blocker works fantasticly with the EasyList subscription that contains some standard filters for ads.
After the two “essential” Addons I usually pick up the IE Tab addon. With this addon you can choose to open sites or links in a tab that is powered by Internet Explorer. You can also write a filter so that some pages (like Windowsupdate.com, Microsoft.com and such) are always opened in IE Tab, this saves you from having to switch browser for sites programmed entierly for Internet Explorer.
If you not only just surf the web but also use FTP the FireFTP addon is worth a look. While being far from the best FTP client I’ve seen it gets the job done and is very easy to use.
Del.icio.us have been a great tool for bookmark handling and the latest installment of a Firefox addon does not dissapoint. Easy interface and installation, though a word of caution: if you run NoScipt make sure to have del.icio.us on the whitelist for scripts or the installation will fail.
Those where my recommendations for now, since I’m soon on a holiday I don’t think I will have time to check out all the developer addons available but I sure will when I get back to work.
HTML 5.0 Interesting changes
On a slow day at work I finally got time to browse through the changes in the propsed HTML 5.0 standard (Editor’s Draft 6 July 2008). The fith version of HTML will come in two flavours, standard HTML and XHTML. More or less the significant difference is that XHTML will not allow any errors in the XML-structure whereas the HTML-version will render the source as best as it can.
There are some interesting new features incoming by the looks of it, many of them seem influenced by what up until now have been solved using scripts. A quick look at the changes in elements shows us that we are handed the tools to further differenciate between layout and semantic.
Removed Elements
Almost all “legacy”1 layout elements are removed such as BASEFONT, BIG, CENTER, FONT, FRAME, FRAMESET, NOFRAMES, S, STRIKE, TT and U. Most of these are hardly used anymore anyway but I guess there are a few sites out there that will miss the FRAMES-support (allthough IFRAME is still around). There are a few other removed elements as well; ACRONYM (which is replaced by the aptly named ABBR), APPLET (replaced by EMBED like all other embeded material), DIR (replaced by CSS or simply UL/OL), ISINDEX and XMP.
Added Elements
As previously noted the added elements often reflect semantic structures in HTML. HEADER and FOOTER are two examples, these display as their names implies header and footer information in their current context. This can be used to display chapter headings in a document and other similar information. Also new are the elements ARTICLE and ASIDE which are used to define areas of information in the current document. For example ARTICLE could refer to a single post, a blog entry, a written article or similar and has the ability to stand alone from the rest of the content. An ASIDE is used within an ARTICLE to add information related to the article but to be displayed seperately like in a column next to the main article.
NAV is a new element to mark the navigation of a site. For example “previous” and “next” link are typical navigation elements and should be enclosed in a NAV element.
There are many other new elements in HTML 5.0 but those are beyond the scope of this small review I’m afraid. Read the full HTML 5.0 document for further information.
Changed Attributes and Events
The attribute ACCESSKEY is the only one removed and this is likely due to the addition of the KBD element which replaces it’s functionallity. An interesting addition is DRAGGABLE which is a boolean value which makes an element draggable by the user, this attibute is also followed by several new event types (onDrag, onDragend, onDragenter, onDragleave, onDragover, onDragstart and onDrop). This element togheter with the attribute CONTENTEDITABLE makes a great couple for future on-line applications.
Other new useful events added in HTML 5.0 are for example onMousewheel, onScroll and onResize which all do what they sound like.
Summary
All in all HTML 5.0 is no revolution but adds some convenient elements for more detailed semantic structures within HTML. It also takes out legacy formating elements and suggests the use of CSS to solve all the layout issues. Hopefully the drafts will soon become a new standard because of what I’ve seen so far it looks promising.
Sources:
http://www.w3.org/html/wg/html5/
http://www.w3schools.com/tags/html5.asp
Footnotes:
1. Wow, this is the first time I’ve used the word legacy in a HTML context! The only other (in)famous element I can think of that was removed is good old BLINK.
8,002,530 downloads in one day
Firefox did manage to pull of a world record of most downloads in one day, just above 8 million downloads the day that Firefox 3 was released. For those that participated (or perhaps would like to say that they did) a special certificate page creates a PDF you can use as a sign that you participated in setting a world record.