La metrica visite nei segmenti avanzati

L’altro giorno un amico mi ha detto “Marco, c’è una cosa che non quadra in Analytics. Sono certo sia una banalità ma non funziona: o non capisco qualcosa o c’è un problema! Volevo fare un segmento avanzato che mi mostrasse le keyword di arrivo, da google, non-brand e con meno di 10 visite, una sorta di “coda lunga”, ma non funziona”.

Mi sembrava effettivamente strano, ma il ragionamento successivo è stato piuttosto divertente, e niente affatto banale. Vediamo se riesco a spiegarlo anche per iscritto.
Il segmento in oggetto per questo blog potrebbe essere qualcosa di assolutamente simile a questo:

  • “parola chiave” non contiene le keyword brand
  • “sorgente” corrisponde esattamente a google
  • “visite” è inferiore a 10

Secondo lo strumento di test questo segmento corrisponde a 1809 visite. Creandolo e andando a vedere le keyword però troviamo anche parole chiave con 90, 200, 500 visite, segno che effettivamente qualcosa sembra non funzionare. La cosa da notare è che il totale delle visite e il totale parziale della regola “visite inferiore a 10″ corrispondono, come potete vedere in questa immagine ritagliata dalla precedente:

entrambi segnano 5025 visite.
In effetti bisogna ricordare che lo scopo dei segmenti avanzati è isolare una certa porzione di traffico, o meglio un certo quantitativo di visite, che sono riconducibili a determinate regole: quindi dati determinati critieri Google Analytics ci mostra quante VISITE sono contenute in quel segmento. Come potrebbe quindi il dato visite essere una delle condizioni per identificare certe visite?

Oppure possiamo vederla da un altro punto di vista: per creare il segmento avanzato GA deve confrontare OGNI visita con i criteri applicati al segmento. Se una keyword ha portato 30 visite, come fa Analytics quando le guarda una ad una a sapere se quell’una è superiore o inferiore a un certo valore? ogni visita conta come UNA visita (quindi è inferiore a dieci, per restare all’esempio, quindi conta TUTTE le visite).

Il segmento sulla metrica “visite” quindi non ha senso. Per risolvere la domanda iniziale bisogna fare un segmento basato solo su “sorgente” e “keyword” (che mostra comunque lo stesso risultato numerico):

e soltanto dopo applicare un filtro avanzato di visualizzazione, escludendo le keyword con più di 10 visite, in questo modo:

La riprova di quanto dico si può fare guardando alle sorgenti di traffico, poi selezionando google e poi usando un filtro semplice di visualizzazione per escludere le parole chiave brand. Il numero di visite sarà esattamente uguale a quello tirato fuori dal segmento (1809 nel mio caso).

Ma allora la domanda potrebbe diventare “perché Google permette di selezionare la metrica visite nella creazione dei segmenti avanzati?”. Beh, questo proprio non lo so :)

Ti piacerebbe analizzare cosa fanno gli utenti mentre guardano i video sul tuo sito? scarica il videotracker di goanalytics.info. E’ facile e veloce!


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Wave UI: Making your gadgets look & feel Wave-y

As part of my Google I/O talk on "Anatomy of a Great Extension", I talked about the optimal look & feel for Wave gadgets. On one hand, if your Wave gadget is based off an existing website, like the 6Rounds gadget, then we recommend mimicing the UI of your website inside the gadget, so that your existing users feel like they're using an extension of your website into Wave. On the other hand, if your Wave gadget is independent and designed purely for Wave, like many extensions in the gallery, then we suggest mimicing the UI of the Google Wave client itself, so that users feel like the gadgets fit inside their environment, and so that waves with multiple independent gadgets look cohesive. To make that easier for developers, we've introduced a new feature to the Wave Gadgets API, the wave.ui library, which makes it easy to turn your gadget elements into wave-styled elements.

For example, you might start with an anchor with some javascript onclick behavior:

<a id="button" href="javascript:void(0)" onclick="doIt()">Do Cool Stuff!</a>

You can then call makeButton and pass in the anchor element:

<script>
wave.ui.makeButton(document.getElementById("button"));
</script>

And, presto, your button will be wave-styled like this:

The wave.ui library also offers the loadCss, makeDialog, and makeFrame methods, and will expand to include additional methods as needed by developers.

For examples of gadgets using the new wave.ui library, check out the Flammard bible bot, which uses makeFrame for a multi-tabbed interface, or the Google Maps gadget, which uses makeDialog for a welcome screen and makeButton for the info window buttons.

As usual, please let us know in the forum how you're using this feature and if you have any questions.

Enjoy wave-styling!


Posted by Pamela Fox, Developer Relations
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Take the high road or the low road with Earth view in Google Maps


Draggable driving directions is one of our most popular features in Google Maps. By simply clicking on a route and dragging it, you can choose an alternate - perhaps more scenic or more familiar - route to your destination. This feature wasn’t available when Earth view launched in Google Maps earlier this year, but we’re happy to announce that draggable driving directions are now in Earth view as well. After getting directions, just grab the blue route line with your mouse and drag it onto alternate highways or streets. The route will update automatically, redrawing your path in 3D as you move your mouse.

As an example, one of my favorite trips to make is to Yosemite Valley from my home in San Francisco. For those of you familiar with this route, there’s a steep shortcut called Old Priest Grade that saves time but can be challenging for larger vehicles. Here is the recommended route taking the grade:


By grabbing the blue line with your mouse cursor and dragging it within the map, you can quickly and easily pick a different route. In this case, I prefer to go around Old Priest Grade and take the gentler Highway 120.


The next time you plan to drive, whether it’s a short day trip to park you’ve never visited or a weekend road trip with your buddies, make sure to check the route and switch it up if you’d like. You can change these same directions to Yosemite, or click-and-drag any driving route you create!

Posted by Peter Birch, Product Manager
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Security First: Google at the International Conference on Cyber Security

The Google Enterprise team is excited to be participating in the International Conference on Cyber Security (ICCS), on August 2nd-5th, at Fordham University in New York City. ICCS brings together global leaders in emerging cyber threat analysis, operations and enforcement. More than 700 IT, business and law enforcement professionals from over 50 countries will gather to discuss the most significant emerging cyber threats and how the security and law enforcement communities are responding to them.

Eric Davis, Policy Manger and Director of Anti-Malvertising at Google will be giving a talk entitled: “Welcome to Malvertising” on Thursday, August 5th at 1:30 PM. “Malvertising” is the intersection of malware and advertising, where ads install malware or redirect users to sites that install malware. Eric will discuss how malvertising occurs over ad networks. He will discuss incident response, as well as available systems, tools and best practices for preventing malware in ads.

If you'll be at the conference, please join us for our talk and stop by our booth to learn more about Google’s cyber security efforts as well as to learn more about how Google secures the data stored in our data centers. If you’re not going to be at the conference, you can find lots of information about cyber security in our Online Security Blog and information about the security of our data centers here.

Posted by Adam Swidler, Sr. Manager – Google Enterprise
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Rain or Snow, Now You Can See Weather in Google Earth


It’s the middle of summer, but for those of us who long for the return of cold winter weather and warm cups of cocoa, throw on your favorite poncho and check out the weather in Google Earth 5.2. The latest version projects images of rain and snow over the areas with those weather patterns as it’s actually happening! First enable the clouds layer, then zoom in to a particular location where it might be raining or snowing. I’m willing to bet London is a likely spot, even these days, or the Lone Star state (pictured below) which is in the midst of tropical storm season. Currently, our precipitation data cover some areas in North America and Europe; you can see if it’s available in certain places by enabling the radar layer.


This is a fun and useful tool for anyone planning to travel or who wants to check a specific area where a friend of relative might be visiting or living. For example, in preparation for my recent trip to the American southwest, I decided to check on the status of Hurricane Alex a few days in advance:


Via Google Earth, I could see that the hurricane was entering Mexico and Texas. Zooming close to ground, I saw that the Texas coastline was getting a bit of rain:


Luckily, I missed the hurricane by a couple of days!

You, too, can make like a meteorologist and track wet weather patterns ranging from light drizzle and snow to hurricanes and blizzards in Google Earth. Feel free to give it a try!

Posted by Quarup Barreirinhas, Software Engineer
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YouTube Increases Video Length Limit to 15 Minutes

YouTube decided to increase the video length limit from 10 minutes to 15 minutes. It may seem like a small change, but YouTube is testing the waters before dropping this limitation.

"Without question, the number one requested feature by our creators is to upload videos longer than 10 minutes. We've heard you, and today we're pleased to announce that we've increased the upload limit to 15 minutes," informs YouTube's blog.


The main reason why YouTube added a 10 minutes limitation back in 2006 was that a lot of users uploaded full-length movies and TV shows. Now that YouTube uses a content identification software and Viacom lost the case against YouTube, Google's video site can safely remove this arbitrary limitation. YouTube is cautious, so it will release incremental improvements.

"We've spent significant resources on creating and improving our state-of-the-art Content ID system and many other powerful tools for copyright owners. Now, all of the major U.S. movie studios, music labels and over 1,000 other global partners use Content ID to manage their content on YouTube. Because of the success of these ongoing technological efforts, we are able to increase the upload limit today," explains YouTube.

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Find Blogs Using Google Blog Search

I remember that someone asked Matt Cutts if Google could restrict search results to homepages. He answered that it's a good suggestion, but adding [-inurl:html -inurl:htm] to your query works pretty well.

Now you can restrict Google results to homepages, but only if you're looking for blogs. Google Blog Search has always highlighted a small number of blogs related to your query and now you can find even more blogs by clicking on the "homepages" filter from Google's sidebar. Google's definitions of blogs is vague and it's likely that any site that offers feeds is included in Google Blog Search's index.

"We've updated Google Blogsearch to make it easier to find blogs that match your query, instead of just finding blog posts. The blogs tool on Google search results filters your results so you see only blog posts. We've added a homepages option that shows a full set of blogs related to your query," informs Jeremy Hylton in a Buzz post. Here are some examples: [tesla car], [google], [android].


{ spotted by François Beaufort. }
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Con Facebook Safety sicurezza tutti i giorni

Forse il peggio è passato per Facebook sulla privacy e la sicurezza. Dopo gli sforzi per aggiornare e migliorare le impostazioni e renderle più chiare, ora è ufficiale anche una pagina apposita: Facebook Safety. Annunciata lo scorso aprile, è online e a pieno regime da pochi giorni e promette di rendere la sicurezza un argomento aggiornato ...
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Autore: Marco Viviani
Tags: Facebook, Privacy, social network
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