Dellanave » SEO

How to Split Test Your WordPress Theme (w/ Plugin)

david — Wed, 15 Jul 2009 21:12:35 +0000

Here is a rudimentary solution that allows you to split test all metrics on your WordPress blog. If there is legitimate usage of this, I will make changes and improvements but at this point I am just throwing together a 15 minute SOLUTION not a complete idiot-proof package. Please, give me feedback, I appreciate it. This was created in response to this, so you can go there to read about why Google Website Optimizer is not the right solution for testing metrics across an entire site.

Download plugin.

First thing you need to do is create 2 theme folders.

theme1 is your original theme

theme2 contains the same theme, but with the changes you want to test

Set up 2 Google Analytics accounts. This seems easiest to do with 2 different email addresses, and 2 browsers so that you can load both at the same time, and it doesn’t complain about the URL being the same.

Open theme1/footer.php and insert the GA code from one account into the footer before the tag.
Open theme2/footer.php and insert the GA code from one account into the footer before the tag.

That’s about it. The plugin will drop a cookie on the user telling them which theme file to load. If you want to completely change the themes, you can edit the plugin and change the cookie name to something new. The cookie lasts for 30 days by default.

PS. I’m gonna admit right now that I almost always make mistakes the first time around. If this doesn’t work for you – let me know. If this doesn’t work for you and you figure out why – PLEASE hit me up and let me know so I can update this post.

P.P.S This could be pretty easily made so much better, easier to install, easier to use, and more flexible. We’ll see if the demand warrants it.

Virgin Mobile Broadband on a Mac – FAIL

david — Wed, 01 Jul 2009 17:43:02 +0000

It doesn’t work.

Yes, the new Virgin Mobile Broadband in the United States using the Novatel MC760 USB EVDO dongle..doesn’t work.

Their web site says you have to activate on a PC but then you can use it on a Mac. This is false. Once installed on your Mac, the drivers DO NOT recognize the MC760 and therefore it is unusable.

What a massive total failure by Virgin Mobile.

Clean your Air Exchanger Filter

david — Thu, 08 Jan 2009 21:10:23 +0000

I’ve been ignoring the blinking filter light on my air exchanger control panel for a couple months. These things aren’t furnace filters….ya gotta clean em:

Semi-Comprehensive TLD Whois Response List

david — Wed, 23 Jul 2008 17:50:58 +0000

For one of the coolest features of our Tools project I needed to be able to accurately determine domain availability. Here’s what I came up with:

$domain_ext = array(
‘.com’ ‘.net’ ‘.biz’ ‘.mobi’ ‘.tv’ ‘.in’ ‘.info’ ‘.co.uk’ ‘.co.ug’ ‘.or.ug’ ‘.nl’ ‘.ro’ ‘.com.au’ ‘.ca’ ‘.org.uk’ ‘.name’ ‘.us’ ‘.ac.ug’ ‘.ne.ug’ ‘.sc.ug’ ‘.ws’ ‘.be’ ‘.com.cn’ ‘.net.cn’ ‘.org.cn’ ‘.no’ ‘.se’ ‘.nu’ ‘.com.tw’ ‘.net.tw’ ‘.org.tw’ ‘.cc’ ‘.nl’ ‘.pl’ ‘.pt’ ‘.org’ ); => array(‘whois.crsnic.net’,'No match for’),
=> array(‘whois.crsnic.net’,'No match for’),
=> array(‘whois.biz’,'Not found’),
=> array(‘whois.dotmobiregistry.net’, ‘NOT FOUND’),
=> array(‘whois.nic.tv’, ‘No match for’),
=> array(‘whois.inregistry.net’, ‘NOT FOUND’),
=> array(‘whois.afilias.net’,'NOT FOUND’),
=> array(‘whois.nic.uk’,'No match’),
=> array(‘wawa.eahd.or.ug’,'No entries found’),
=> array(‘wawa.eahd.or.ug’,'No entries found’),
=> array(‘whois.domain-registry.nl’,'is free’),
=> array(‘whois.rotld.ro’,'No entries found for the selected’),
=> array(‘whois.ausregistry.net.au’,'No Data Found’),
=> array(‘whois.cira.ca’, ‘AVAIL’),
=> array(‘whois.nic.uk’,'No match’),
=> array(‘whois.nic.name’,'No match’),
=> array(‘whois.nic.us’,'Not found’),
=> array(‘wawa.eahd.or.ug’,'No entries found’),
=> array(‘wawa.eahd.or.ug’,'No entries found’),
=> array(‘wawa.eahd.or.ug’,'No entries found’),
=> array(‘whois.website.ws’,'No Match’),
=> array(‘whois.ripe.net’,'FREE’),
=> array(‘whois.cnnic.cn’,'no matching record’),
=> array(‘whois.cnnic.cn’,'no matching record’),
=> array(‘whois.cnnic.cn’,'no matching record’),
=> array(‘whois.norid.no’,'no matches’),
=> array(‘whois.nic-se.se’,'not found’),
=> array(‘whois.nic.nu’,'NO MATCH for’),
=> array(‘whois.twnic.net’,'No Found’),
=> array(‘whois.twnic.net’,'No Found’),
=> array(‘whois.twnic.net’,'No Found’),
=> array(‘whois.nic.cc’,'No match’),
=> array(‘whois.domain-registry.nl’,'is free’),
=> array(‘whois.dns.pl’,'No information about’),
=> array(‘whois.dns.pt’,'no match’),
=> array(‘whois.pir.org’,'NOT FOUND’)

If I had time, I’d add a 3rd field which would be the response when the domain IS available.

Nice Exploit Code I Found in my WordPress

david — Mon, 10 Mar 2008 17:51:53 +0000

I was going through some old posts just now, and discovered this little treat embedded in a post:

The code that it’s loading (I know it doesn’t wrap, I don’t really care.) Code deleted. Thanks to Mike Peters for the follow-up in the comments:

This code got sql injected into your wp_posts.

Make sure you upgrade to the 2.3.2 version of WordPress:

http://wordpress.org/support/topic/151888

What it does is attempt to install a VBS malware on your machine using an xmlrpc exploit in older versions of WordPress.

Look for something like this in your server logs -

200.216.67.181 – - [28/Jan/2008:13:10:54 -0500] “POST /xmlrpc.php HTTP/1.0″

Once you view the post, you’re infected – the VBS code will be installed and you’re going to need to run NOD32 or AVG to clean it up

Someone with more patience than myself will probably take the time to disassemble that.

To find the post titles in your blog that might be affected, in SQL do:

mysql> select post_title from wp_posts where post_content like '%Statistics%';

How much would you pay to use Google?

david — Tue, 29 Jan 2008 07:26:36 +0000

I got to thinking about how much I use Google to answer questions the other day. My search activity calendar looks like this every month:

Even between Jan 1-3 when I was in Vegas I did 1-3 searches. Some months are even more heavy than this. So how much would I pay? I wouldn’t have a problem with paying up to $1500/year to use Google. Maybe even more if I had to. It is THAT valuable to me.

How much would you pay to use Google?

P.S. I think the search history is super freakin’ cool.

Update: Pam points out that the calendar is actually all web activity and not just search. Touché. That said, it doesn’t change how valuable I think Google is to me. I’d still cough up the $1500.

Tips on Writing a Scraper

david — Fri, 11 Jan 2008 19:23:29 +0000

A couple weeks ago I got an email from a friend asking for some tips on writing a scraper. As I was responding, I realized it would make a good post. I think writing scrapers is one of my specialties, and I’ve yet to come across a site I haven’t been able to pillage.

Here’s a few thoughts:

I like Perl a lot for scraping, but PHP works too. Since scraping is kind of a rapid-prototype situation you should just use the tool you’re most comfortable with. The nice part about Perl for scraping is all the available modules to do various data mangling, and the ability to multi-thread it. I rarely write a scraper in PHP, but if you’re more comfortable with PHP by all means USE IT.

Scrape ALL THE DATA YOU CAN. You might think you only want one little bit of data from a site. Take everything you can and dump it into a database. Look, you’re pulling the page anyway, you might as well save everything in case you need it later. Dump everything into a database, and then pull out what you want from there into whatever you’re using it for. You’ll never regret having the full dump, but you will regret not grabbing everything when you need another bit of data and you didn’t scrape it.

Be smart about re-indexing it. Say you scrape somesite.com/id=123. Don’t put it into your database with id=123. Some day the site owner you ripped is going to notice all the IDs are the same and could use that against you. Re-index it. Going back to my previous point, keep THEIR ids in a database in case you need to rip some more data, you have their keys intact.

A lot of people worry about rotating or proxying IPs when they’re scraping. Don’t waste your time. I’ve yet to find a site (other than Google) that will actually be aware enough to block you for scraping. In the same vein, don’t piss-pound someone’s server when you’re scraping them. Put a sleep(1) in for christs sake.

Distributing your scraper? That might make sense if you’re planning on spidering or scraping a lot of sites. Use a common database and make sure your scrapers never cross paths. Its a waste of your resources as well as the site you’re pillaging.

Don’t overthink or overcode it. This is like anything else. I’ve literally seen people spend a week writing a scraper with a million bells and whistles. Just make it WORK and run it.

Be aware of cookies. Sometimes you’ll want your scraper to happily accept cookies, other times you want to make sure it ignores them. Depends on the site you’re scraping. Be aware that some sites will have interstitials or other things that will mess with your scrape. Cookies may or may not be away around those ads. Regardless, be aware of them and code accordingly.

Use Live HTTP Headers in Firefox if you’re struggling with understanding why you can access a site in a browser but your Perl script doesn’t get the same responses.

Don’t forget APIs. Sometimes you don’t even need to scrape, you can pull the data with an API. One time I wanted a database of like every CD ever made. Amazon API for the win.

Finally, remember, if a browser can access it, you can scrape it. If you can’t figure it out, you’re not trying hard enough.

Props Week: Friday – Chris Winfield/10e20

david — Fri, 11 Jan 2008 19:06:00 +0000

To be honest I wasn’t sure who I was going to give props to today. As I was firing off some emails and IMs it occurred to me. Chris Winfield has been one of the most gracious, coolest people I’ve met in the industry since the first time I met him. I think we first met at SES San Jose this summer, and we’ve always grabbed a drink at every conference. Chris (and his lady) are always super nice. Maybe more importantly though, I can always fire off an email to Chris if I need a quick favor and he ALWAYS helps out. His company is without question where I would turn for social media marketing, in other words, getting on digg. I think Chris and 10e20 (coolest freaking company name ever too) have been making waves, and I expect they’ll continue. Good people.

ADD sidenote: It never ceases to amaze me how connected we are. Within a few seconds of receiving a message from one person, I can reach out and touch 10 other people in all different parts of the US/world with different mediums (IM, email, phone). It’s pretty badass when you think back to even 10 years ago when we weren’t all connected this seamlessly.

Props Week: Wednesday – SEOBlackHat

david — Wed, 09 Jan 2008 19:14:22 +0000

I’ve always liked Quadszilla over at SEO Black Hat, and some of his most recent posts are really good. This particular post is a great method for building a new habit. I use the exact same technique for keeping track of my cardio workouts. I’m really consistent with lifting, but cardio is harder to stick with. Having a calendar in your face with big red X’s is hard to argue with. I’m not a member of the private SEO forum but I have heard really good things if you’re into the forum thing.

Props Week: Monday – Joost de Valk

david — Mon, 07 Jan 2008 18:18:01 +0000

One guy who doesn’t get enough credit is Joost de Valk. He has written a bunch of cool tools, and a load of useful WordPress plugins. The one that takes the cake though is his RSS Footer insertion plugin. Let the scrapers steal your RSS content, you’re just going to get a nice influx of backlinks with Joost’s plugin. If you ever need a custom wordpress plugin, I’d say fire an email at Joost. As long as you’re here too, go vote for him.