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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (6657)

  • Revision 79afb5eb41 : Use lrand48 on Android When building x86 assembly use lrand48 instead of the un

    13 juin 2014, par Johann

    Changed Paths :
     Modify /vp8/common/x86/postproc_mmx.asm


     Modify /vp8/common/x86/postproc_sse2.asm


     Delete /vp8/common/x86/postproc_x86.c


     Modify /vp8/vp8_common.mk


     Modify /vp9/common/x86/vp9_postproc_mmx.asm


     Modify /vp9/common/x86/vp9_postproc_sse2.asm


     Modify /vpx_ports/x86_abi_support.asm



    Use lrand48 on Android

    When building x86 assembly use lrand48 instead of the
    undocumented inlined _rand function.

    Android now supports rand()
    https://android-review.googlesource.com/97731
    but only for new versions. Original workaround :
    https://gerrit.chromium.org/gerrit/15744

    Change-Id : I130566837d5bfc9e54187ebe9807350d1a7dab2a

  • CRO Audit : Increase Your Conversions in 10 Simple Steps

    25 mars 2024, par Erin

    You have two options if you’re unhappy with your website’s conversion rates.

    The first is to implement a couple of random tactics you heard on that marketing podcast, which worked for a business completely unrelated to yours. 

    The other is to take a more systematic, measured approach. An approach that finds specific problems with the pages on your site and fixes them one by one. 

    You’re choosing the second option, right ?

    Good, then let’s explain what a conversion rate optimisation audit is and how you can complete one using our step-by-step process.

    What is a CRO audit ?

    A conversion rate optimisation audit (CRO audit) systematically evaluates your website. It identifies opportunities to enhance your website’s performance and improve conversion rates. 

    During the audit, you’ll analyse your website’s entire customer journey, collect valuable user behaviour data and cross reference that with web analytics to find site elements (forms, calls-to-actions, etc.) that you can optimise.

    What is a CRO audit

    It’s one (and usually the first) part of a wider CRO strategy. 

    For example, an online retailer might run a CRO audit to discover why cart abandonment rates are high. The audit may throw up several potential problems (like a confusing checkout form and poor navigation), which the retailer can then spend time optimising using A/B tests

    Why run a CRO audit ?

    A CRO audit can be a lot of work, but it’s well worth the effort. Here are the benefits you can expect from running one.

    Generate targeted and relevant insights

    You’ve probably already tested some “best practice” conversion rate optimisations, like changing the colour of your CTA button, adding social proof or highlighting benefits to your headlines. 

    These are great, but they aren’t tailored to your audience. Running a CRO audit will ensure you find (and rectify) the conversion bottlenecks and barriers that impact your users, not someone else’s.

    Improve conversion rates

    Ultimately, CRO audits are about improving conversion rates and increasing revenue. Finding and eliminating barriers to conversion makes it much more likely that users will convert. 

    But that’s not all. CRO audits also improve the user experience and customer satisfaction. The audit process will help you understand how users behave on your website, allowing you to create a more user-friendly customer experience. 

    A 10-step process for running your first CRO audit 

    Want to conduct your first CRO audit ? Follow the ten-step process we outline below :

    A 10-step process for running your first CRO audit

    1. Define your goals

    Start your CRO audit by setting conversion goals that marry with the wider goals of your business. The more clearly you define your goals, the easier it will be to evaluate your website for opportunities. 

    Your goals could include :

    • Booking more trials
    • Getting more email subscribers
    • Reducing cart abandonments

    You should also define the specific actions users need to take for you to achieve these goals. For example, users will have to click on your call-to-action and complete a form to book more trials. On the other hand, reducing cart abandonments requires users to add items to their cart and click through all of the forms during the checkout process. 

    If you’re unsure where to start, we recommend reading our CRO statistics roundup to see how your site compares to industry averages for metrics like conversion and click-through rates. 

    You’ll also want to ensure you track these conversion goals in your web analytics software. In Matomo, it only takes a few minutes to set up a new conversion goal, and the goals dashboard makes it easy to see your performance at a glance. 

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    2. Review your analytics

    With your goals in mind, the next step is to dive into your website analytics and identify pages that need improvement.

    Consider the following conversion metrics when analysing pages :

    • Conversion rate
    • Average time on page
    • Average order value
    • Click-through rate

    Ensure you’re analysing metrics aligning with the goals you set in step one. Average order value could be a great metric to track if you want to reduce cart abandonments, for example, but it’s unsuitable to get more email subscribers.

    3. Research the user experience

    Next, you’ll want to gather user experience data to better understand how potential customers use your website and why they aren’t converting as often as you’d like. 

    You can use several tools for user behaviour analysis, but we recommend heatmaps and session recordings.

    Heatmaps visually represent how users click, move and scroll your website. It will show where visitors place their attention and which page elements are ignored. 

    Take a look at this example below from our website. As you can see, the navigation, headline and CTA get the most attention. If we weren’t seeing as many conversions as we liked and our CTAs were getting ignored, that might be a sign to change their colour or placement. 

    Screenshot of Matomo heatmap feature

    Session recordings capture the actions users take as they browse your website. They let you watch a video playback of how visitors behave, capturing clicks and scrolls so you can see each visitor’s steps in order. 

    Session recordings will show you how users navigate and where they drop off. 

    4. Analyse your forms

    Whether your forms are too confusing or too long, there are plenty of reasons for users to abandon your forms. 

    But how many forms are they abandoning exactly and which forms are there ?

    That’s what form analysis is for. 

    Running a form analysis will highlight which forms need work and reveal whether forms could be contributing to a page’s poor conversion rate. It’s how Concrete CMS tripled its leads in just a few days.

    Matomo’s Form Analytics feature makes running form analysis easy.

    A screenshot of Matomo's form analysis dashboard

    Just open up the forms dashboard to get a snapshot of your forms’ key metrics, including average hesitation time, starter rate and submission rates. 

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    5. Analyse your conversion funnel

    Next, analyse the conversion funnel to see if there’s an obvious bottleneck or several pages where visitors abandon your desired action. Common conversion abandonment points are shopping carts and forms.

    A website conversion funnel

    For example, you could find there is a drop-off in conversions between checking out and making a purchase or between booking a demo and signing up for a subscription. Understanding where these drop-offs occur lets you dig deeper and make targeted improvements.

    Don’t worry if you’ve got a very long funnel. Start at the bottom and work backward. Problems with the pages at the very end of your funnel tasked with converting customers (landing pages, checkout pages, etc.) will have the biggest impact on your conversion rate. So, it makes sense to start there. 

    6. Analyse campaigns and traffic sources (marketing attribution)

    It’s now time to analyse traffic quality to ensure you’re powering your conversion optimisation efforts with the best traffic possible. 

    This can also help you find your best customers so you can focus on acquiring more of them and tailoring your optimisation efforts to their preferences. 

    Run a marketing attribution report to see which traffic sources generate the most conversions and have the highest conversion rates. 

    Matomo comparing linear, first click, and last click attribution models in the marketing attribution dashboard

    Using marketing attribution is crucial here because it gives a fuller picture of how customers move through their journey, recognising the impact of various touchpoints in making a decision, unlike last-click attribution, which only credits the final touchpoint before a conversion.

    7. Use surveys and other qualitative data sources

    Increase the amount of qualitative data you have access to by speaking directly to customers. Surveys, interviews and other user feedback methods add depth and context to your user behaviour research.

    Sure, you aren’t getting feedback from hundreds of customers like you do with heatmaps or session recordings, but the information can sometimes be much richer. Users will often tell you outright why they didn’t take a specific action in a survey response (or what convinced them to convert). 

    Running surveys is now even easier in Matomo, thanks to the Matomo Surveys third-party plugin. This lets you add a customisable survey popup to your site, the data from which is automatically added to Matomo and can be combined with Matomo segments.

    8. Develop a conversion hypothesis

    Using all of the insights you’ve gathered up to this point, you can now hypothesise what’s wrong and how you can fix it. 

    Here’s a template you can use :

    Conversion Hypothesis Template

    This could end up looking something like the following :

    Based on evidence gathered from web analytics and heatmaps, moving our signup form above the fold will fix our lack of free trial signups, improving signups by 50%.

    A hypothesis recorded in Matomo

    Make sure you write your hypothesis down somewhere. Matomo lets you document your hypothesis when creating an A/B test, so it’s easy to reflect on when the test finishes. 

    9. Run A/B tests

    Now, it’s time to put your theory into practice by running an A/B test.

    Create an experiment using a platform like Matomo that creates two different versions of your page : the original and one with the change you mentioned in your hypothesis. 

    There’s no set time for you to run an A/B test. Just keep running it until the outcome is statistically significant. This is something your A/B testing platform should do automatically. 

    A statistically significant result means it would be very unlikely the outcome doesn’t happen in the long term.

    A screenshot of an A/B test

    As you can see in the image above, the wide header variation has significantly outperformed both the original and the other variation. So we can be pretty confident about making the change permanent. 

    If the outcome of your A/B test also validates your conversion hypothesis, you can implement the change. If not, analyse the data, brainstorm another hypothesis and run another A/B test. 

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    10. Monitor and iterate

    You need to develop a culture of continuous improvement to succeed with conversion rate optimisation. That means constantly monitoring your conversion goals and running tests to improve your metrics. 

    While you don’t need to run a conversion audit every month, you should run audits regularly throughout the year.

    How often should you conduct a CRO audit ? 

    You should conduct a CRO audit fairly regularly. 

    We recommend creating a CRO schedule that sees you run a CRO audit every six to 12 months. That will ensure you continue identifying problem pages and keeping your conversion rates competitive. 

    Regular CRO audits will also account for evolving consumer behaviours, changes in your industry and your own business goals, all of which can impact your approach conversion rate optimisation. 

    Run your CRO audit with Matomo

    A CRO audit process is the only way you can identify conversion optimisation methods that will work for your site and your target audience. It’s a methodical, data-backed strategy for making targeted improvements to send conversion rates soaring. 

    There are a lot of steps to complete, but you don’t need dozens of tools to run a CRO audit process. 

    Just one : Matomo.

    Unlike other web analytics platforms, like Google Analytics, Matomo has the built-in tools and plugins to help with every step of the CRO audit process, from web analytics to conversion funnel analysis and A/B testing. With its accurate, unsampled data and privacy-friendly tracking, Matomo is the ideal choice for optimising conversions. 

    Learn how to increase your conversions with Matomo, and start a free 21-day trial today. No credit card required.

  • CRO Testing : The 6-Steps for Maximising Conversion Rates

    10 mars 2024, par Erin

    It’s a nightmare every marketing manager faces. Traffic is soaring after you’ve launched new digital marketing campaigns, but conversions have barely moved.

    Sound familiar ?

    The good news is you’re not alone — loads of marketing managers struggle to get potential customers to purchase. The better news is that you can test dozens of strategies to turn around your site’s fortunes. 

    Conversion rate optimisation testing (CRO testing for short) is the name for this kind of experimentation — and it can send conversion rates and revenue soaring.

    In this article, we’ll explain CRO testing and how you can start doing it today using Matomo. 

    What is CRO Testing ? 

    CRO testing is optimising your site’s conversion funnel using a series of experiments designed to improve conversion rates.

    A CRO test can take several forms, but it usually involves changing one or more elements of your landing page. It looks something like this :

    1. You hypothesise what you expect to happen.
    2. You then run an A/B test using a dedicated CRO platform or tool.
    3. This tool will divide your site’s traffic, sending one segment to one variation and the other segment to another.
    4. The CRO tool will measure conversions, track statistical significance, and declare one variation the winner. 

    A CRO tool isn’t the only software you can use to gather data when running tests. There are several other valuable data sources, including :

    • A web analytics platform : to identify issues with your website
    • User surveys : to find out what your target audience thinks about your site
    • Heatmaps : to learn where users focus their attention
    • Session recordings : to discover how visitors browse your site

    Use as many of these features, tools, and methods as you can when brainstorming hypotheses and measuring results. After all, your CRO test is only as good as your data.

    On that note, we need to mention the importance of data accuracy when researching issues with your website and running CRO tests. If you trust a platform like Google Analytics that uses data sampling (where only a subset of data is analysed), then there’s a risk you make business decisions based on inaccurate reports.

    In practice, that could see you overestimate the effectiveness of a landing page, potentially wasting thousands in ad spend on poorly converting pages. 

    That’s why over a million websites rely on Matomo as their web analytics solution—it doesn’t sample data, providing 100% accurate website traffic insights you can trust to make informed decisions.

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    Types of CRO Testing 

    There are three core types of CRO tests :

    A/B testing

    A/B testing, or split testing, is when you test two versions of the same page against each other. Usually, the two pages have only one difference, such as a new headline or a different CTA. 

    An A/B test setup in Matomo

    In the test above, for example, we test what happens if we remove one of the affiliate links from a page. We hypothesise that conversions won’t change because these links aren’t effective.

    A/B/n testing

    A/B/n testing is when you test multiple variations of the same element on the same page. 

    Rather than just testing one headline against another, for example, you test multiple different headlines at once.

    A screenshot of A/B test results run using Matomo

    In the test above in Matomo, we’re testing a website’s original header against a wider and smaller version. It turns out the wider header converts significantly better. 

    Multivariate testing

    In a multivariate CRO test, you test multiple different elements at the same time. That could mean testing combining a different headline, CTA button, and image. 

    Multivariate testing can save time because you test multiple elements at once and find the best combination of elements. But you’ll usually need a lot of traffic to find a statistically significant result.

    Why is CRO testing important ?

    Who doesn’t want more conversions, right ? Improving your conversion rate is the core benefit of running a CRO test, but there are a couple of other reasons you should do it, too :

    Why Is CRO Testing Important?

    Improve conversion rates

    How well does your website convert visitors ? The average conversion rate of a typical website is 2.35%, but better-performing websites have significantly higher conversion rates. The top 25% of websites across all industries convert at a rate of 5.31% or higher.

    CRO testing is the best way to improve your site’s conversion rate by tweaking elements of your website and implementing the best results. And because it’s based on data, not your intuition, you’re likely to identify changes that move the needle. 

    Optimise the user experience

    CRO tests are also a great way to improve your site’s user experience. The process of CRO testing forces you to understand how users navigate your website using heatmaps and session recordings and fix the issues they face. 

    You could simplify your form fields to make them easier to fill in, for example, or make your pages easier to navigate. In both cases, your actions will also increase conversion rates.

    Decrease acquisition costs

    Improving your conversion rate using CRO testing will usually mean a decrease in customer acquisition costs and other conversion metrics

    After all, if the cost of your PPC ads stays the same but you convert more traffic, then each new customer will cost less to acquire.

    How to do CRO testing in 6 steps 

    Ready to get your hands dirty ? Follow these six steps to set up your first CRO test :

    Have a clear goal

    Don’t jump straight into testing. You need to be clear about what you want to achieve ; otherwise, you risk wasting time on irrelevant experiments. 

    If you’re unsure what to focus on, look back through your web analytics data and other tools like heatmaps, form analytics, and session recordings to get a feel for some of your site’s biggest conversion roadblocks. 

    Maybe there’s a page with a much lower conversion rate, for example — or a form that most users fail to complete. 

    If it’s the former, then your goal could be to increase the conversion rate of this specific landing page by 25%, bringing it in line with your site’s average. 

    The Goals dashboard in Matomo

    Make sure your new conversion goal is set up properly in your website analytics platform, too. This will ensure you’re tracking conversions accurately. 

    Set a hypothesis

    Now you’ve got a goal, it’s time to create a hypothesis. Based on your available research, a hypothesis is an assumption you make about your conversion rate optimisation test.

    A heatmap of your poorly converting landing page may show that users aren’t focusing on your CTA button because it’s hidden below the fold. 

    You could hypothesise that by placing the CTA button directly under your headline above the fold, your conversion rate should increase. 

    Whatever your goal, you can use the following template to write a hypothesis :

    If we [make this specific change], then [this specific outcome] will occur because [reason].

    Design your test elements

    Most marketing managers won’t be able to run CRO tests independently. A team of talented experts must create the assets you need for a successful experimentation. This includes designers, copywriters, and web developers. 

    Don’t just have them create one new element at a time. Accelerate the process by having your team create dozens of designs simultaneously. That way, you can run a new CRO test as soon as your current test has finished. 

    Create and launch the test

    It’s time to launch your test. Use a CRO tool to automate building your test and tracking results. 

    With Matomo’s A/B Testing feature, it’s as easy as giving your test a name, writing a hypothesis and description, and uploading the URLs of your page variants.

    How to create a new A/B test in Matomo

    Matomo handles everything else, giving you a detailed breakdown at the end of the test with the winning variant. 

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    Analyse the results

    You can only review the results of your CRO test once it has reached statistical significance — which means the observed outcome isn’t the result of chance.

    In the same way you wouldn’t say a die is unbiased after three rolls, you need thousands of visitors to see your landing pages and take action before deciding which is better. 

    Luckily, most CRO testing platforms, including Matomo, will highlight when a test reaches statistical significance. That means you only need to look at the result to see if your hypothesis is correct. 

    Implement and repeat

    Was your test a success ? Great, you can implement the results and test a new element. 

    Yep, that’s right. There’s no time to rest on your laurels. Continuous CRO testing is necessary to squeeze every conversion possible from your website. Just like fashion trends, website effectiveness changes over time. What works today might not work tomorrow, making ongoing CRO testing beneficial and necessary.

    That’s why it’s a good idea to choose a CRO testing platform like Matomo with no data limits.

    Try Matomo for Free

    Get the web insights you need, without compromising data accuracy.

    No credit card required

    CRO testing examples you can run today 

    There’s no shortage of CRO tests you can run. Here are some experiments to get started with :

    Change your CTA design and copy

    Calls to action (CTAs) are the best elements to optimise during your first CRO test. You can change many things about them ; even the smallest optimisation can have a huge impact. 

    Just take a look at the image below to see how diverse your CTAs could be :

    A range of different CTA buttons

    Changing your CTA’s copy is a great place to start, especially if you have generic instructions like “Apply Now.”

    Try a more specific instruction like “Download your free trial” or “Buy now to get 30% off.” Or test benefit-led instructions like “Reduce your ad spend today” or “Take back control of your data.”

    Changing the colour of your CTAs can also yield more conversions. Bright colours are always a good bet. Just make sure your button stands out from the rest of your page. 

    Move the CTA button placement

    The placement of your CTA can be just as important as its copy or colour. If it’s down at the bottom of your page, there’s a good chance most of your visitors will miss it. 

    Try moving it above the fold to see if that makes a difference. Then, test multiple CTA buttons as opposed to just one. 

    Heatmaps and session recordings can identify whether this test is worthwhile. If users rarely focus on your CTA or just don’t scroll far enough to find it, then it’s a good bet you could see an uptick in conversions by moving it. 

    Try different headlines

    Your website’s headlines are another great place to start CRO testing. These are usually the first (and sometimes only) things visitors read, so optimising them as much as possible makes sense. 

    There are entire books written about creating persuasive headlines, but start with one of the following tactics :

    • Include a benefit
      • “Achieve radiant skin—discover the secret !”
    • Add numbers
      • “3 foolproof methods for saving money on your next vacation”
    • Using negative words instead of positive ones
      • “Avoid these 7 mistakes to unlock your potential for personal growth”
    • Shortening or lengthening your headline
      • Shortened : “Crush your fitness goals : Expert tips for success”
      • Lengthened : “Embark on your fitness journey : Learn from experts with proven tips to crush your wellness goals”

    Add more trust signals

    Adding trust signals to your website, such as brand logos, customer reviews, and security badges, can increase your conversion rate.

    We use it at Matomo by adding the logos of well-known clients like the United Nations and Amnesty International underneath our CTAs.

    Trust signals on the Matomo website

    It’s incredibly effective, too. Research by Edelman finds that trust is among the top three most important buying decision factors, above brand likeability.

    Start CRO testing with Matomo

    CRO testing is a data-backed method to improve your site’s conversion rate, making it more user-friendly and decreasing customer acquisition costs. Even a small improvement will be worth the cost of the tools and your time. 

    Fortunately, there’s no need to allocate hundreds of dollars monthly for multiple specialised testing tools. With Matomo, you get a comprehensive platform offering web analytics, user behaviour insights, and CRO testing – all conveniently bundled into one solution. Matomo’s pricing starts from just $19 per month, making it accessible to businesses of all sizes.

    Plus, rest assured knowing that you are GDPR compliant and the data provided is 100% accurate, ethically empowering you to make informed decisions with confidence.

    Take the first step on your CRO testing journey by trying Matomo free for 21 days ; no credit card required.