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[其他] Improving Site Speed: Everything You Need to Know

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奇葩也是一种有才 投递于 2016-12-2 17:02:02
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Site speed isn’t exactly a glamorous subject, so I don’t blame you if you’ve been avoiding giving it much thought.
  But reality isn't always convenient - site speed is becoming more and more important, and internet user attention spans definitely aren't getting any longer.
  Perhaps even more importantly, Google's paying attention to this particular issue, and that 8 second load-time is having an affect on your rankings whether you like it or not.
   More and more, site owners are coming to understand that site speed is part of any good SEO strategy . So put your learning caps on, let's dig in.
   How Much Does It Actually Matter?

  Let me stop you right there.
  This isn’t one of those things that you can just dismiss and say “it’s just for the perfectionist” or “I don’t have enough traffic for this to matter”.
  Site speed matters for every website, and does so for a variety of reasons. You’d be wise not to dismiss them.
  First and foremost, think about your visitors and their browsing habits. A few facts:
   

Improving Site Speed: Everything You Need to Know

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  Image courtesy Kissmetrics
  As if those weren’t enough to convince you, I’ll go ahead and let you know that Google cares as well - and that should stand to reason right?
  At the end of the day, Google’s goal is to improve the internet for users, it’s in their best interest to continually encourage site owners to engage in good behavior and make the web a safer and more enjoyable experience. And with so many internet users flagging that site speed is important, it’s only natural that Google would take it into consideration in its algorithm.
   In fact, this is anything but news - Google announced back in 2010 that site speed was indeed a ranking factor, so you can bet this hasn’t changed considering it’s been corroborated by third party data time and time again.
   How to Measure Site Speed

  First off, you’re going to need to measure your site’s speed in order to assess whether or not it needs any love.
  There are a number of tools available to you, and all of them are free to use.
  You’ll probably end up with a favorite, but I’d recommend using all of them as you make your way through the process. I say this because each tool has a unique presentation and some display slightly different information to others.
  Lastly (and this is a big caveat), please keep in mind that score is definitely not the only thing that matters here. The score is a benchmark that will also vary between the different tools - there's no universal metric for page speed scoring.
  What you need to remember is that each situation is unique. You may have a particular implementation that doesn’t reflect well in terms of a YSlow score, but that doesn’t mean that Google will penalize your site or that your load time will be inordinately high.
  The bottom line is that the scores are a guideline - don’t set an arbitrary goal and try to get to a specific number. If you do take that approach, you may quickly find yourself making unnecessary sacrifices and cutting useful resources from your site in order to reach that benchmark.
  Just keep an open mind and you’ll be fine. The tools I’d recommend using are:
   Google PageSpeed Insights

   

Improving Site Speed: Everything You Need to Know

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Google, of course, has it’s own tool , and this is where you should start your journey.
  It’s definitely not the most robust of the bunch - in fact, it’s easily the most bare-bones of all of the tools we’re going to discuss. But that being said, it’s still a decent place to start your journey.
  Take a look at what it recommends for your site and you should come away with a decent idea of what areas you should look to improve upon.
   GTmetrix

   

Improving Site Speed: Everything You Need to Know

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This tool is easily my favorite.  
  To start with, it provides two different scores and a “waterfall chart”. The waterfall chart may get a little technical, but if you start digging in you’ll find it to be an invaluable resource.
  As you can see, the folks at IGN clearly have their work cut out for them. That being said, they have a sizable pre-existing loyal following (perhaps they've experimented and found that their return traffic is unaffected by the horrid load times).
  Anyways, it's also great that you can create a free account on GTmetrix and have it run a daily report on your page. You can then view progress over time, or compare any two (or more) reports to see what items you've improved and what their cumulative effect has been in terms of performance.
   WebPageTest

   

Improving Site Speed: Everything You Need to Know

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Despite the super outdated appearance, this tool is still useful. I’d say it’s somewhere between GTmetrix and Google PageSpeed Insights in terms of it’s usefulness.
  It too provides a waterfall chart, and multiple different scores. Using the reports, you’ll get very specific and granular data on what needs improving and where your issues lie.
  One really nice (and unique) feature lies in its ability to display both first time and repeat view scores. These differ depending on caching set up and some other factors. Definitely good information to have.
   Pingdom Website Speed Test

   

Improving Site Speed: Everything You Need to Know

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Pingdom is another strong offering, and it has the “prettiest” presentation of any of the tools.
  They have a paid version that offers more features and perks, but I haven’t ever tried that so I can’t give it a recommendation or assess it’s true value or potential.
  I can say that the free tool is useful and I’d definitely recommend checking it out.
   How to Improve your Site Speed

  Truth be told, there’s too much to cover in one or two articles dedicated specifically to improving site speed, and many useful resources exist on this subject already.
  In this guide, we’re just getting our feet wet, so I’m going to keep my recommendations accessible and try not to get too deep into the technical aspects.
  For many of us, we’ll need to hire a site speed expert in order to fully resolve issues found in any of the testing tools above. But we can all make headway on our own as well - and if you’re lucky, that might be enough to get that <2 second load time we all want.
   Optimize your images

  A picture is worth a thousand words - or in terms of file size, 100,000 words.
  Images are great for keeping visitors engaged, building a brand identity, and conveying a lot of information quickly. That being said, they're often sizeable files, which subsequently add significantly to page load time.
  Luckily, optimizing images is easy, and can be done in bulk using plugins.
   If you’re on WordPress, just download EWWW Image Optimizer , and bulk edit all of your uploads. It'll only take you a few clicks, and you can walk away while it does the heavy lifting.
   

Improving Site Speed: Everything You Need to Know

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You’ll be amazed by how much improvement you’ll see just from optimizing images.
   Theme choice

  If you’re using a theme for your website on a platform like WordPress, you’re not going to like what I have to say next.
  While it may not be a problem for you, some themes are poorly optimized for speed. It totally depends on your particular theme.
  Do independent research, check forums and support threads, and check the documentation that came with your theme. There may be specific advice contained within the documentation, or settings in the theme’s advanced configuration that you can fiddle with to improve your site speed.
  Worst case, you may have to make the tough decision that in the long-run you’ll need to pick a different theme that has better optimized code.
   Remove unnecessary plugins

  When I help clients optimize their sites, the first thing I do (after optimizing images) is I take a look at what plugins they’ve got installed and active.
  I’m often surprised with what I find - tons of useless, cosmetic plugins, duplicate Google Analytics tracking. You name it.
  Take a hard look at your plugins list - anything that you’re not actively using should be removed.
  You can see which plugins are resource heavy via GTmetrix, and you should prioritize their removal wherever possible.
   Page size

  Having too many large images, videos, or too many unnecessary lines of code in your .htaccess or JavaScript files can all contribute to a slower site.
  Have your developer take a look at stripping down your site’s code where appropriate. Often, if your site's a few years old, you’ll have features and fluff left over that you don’t use anymore.
  Also, on the topic of embedded videos, these are often large files and include more than one JavaScript resource.
   Are people actually watching your embedded videos? Check your in-page analytics (there’s a plugin for that) to find out. If people aren’t actually engaging with them, consider either removing them or improving their placement and exposure.
   GZip compression

   Gzip is an application that reduces the size of any resource larger than 150 bytes. We’re talking CSS, JavaScript, HTML, etc.
  There’s plenty of documentation available online for how to start using this, and it'll definitely make a difference for your page speed.
   Minify and concatenate CSS and JS

  This one can get a bit complicated, and you'll have to be an advanced user to make sense out of all of it  - I myself don’t have enough of a grasp of all of it to give you detailed advice.
  But what I can tell you is that there are plugins that can help with this if you’re on WordPress.
  
       
  • BWPMinify  is a great and user-friendly plug-in that may be just what you’re looking for. It can make a number of improvements without requiring advanced user knowledge.   
  • Autoptimize  is another one that you may find useful.  
  Work on this particular angle will require some experimentation so I’d definitely recommend utilizing a staging or testing site where you can mess around without breaking anything that’s live and customer-facing.
   … is That All?

  Hah, you wish.
  I know all of this can be a lot to digest if you’re not particularly familiar with the subject, but it does get easier.
  The more you expose yourself to the subject matter, experiment with plugins, and utilize the testing tools, the more you’ll come to understand the specifics.
  In the end, you’ll probably still need help from a talented and skilled developer - whether it’s to take on the entire project, or just to do some fine-tuning and double-check the security and stability of your own work, but it'll be well worth the money spent if you can improve the user experience.



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过往情殇 投递于 2016-12-2 17:40:17
以后就跟奇葩也是一种有才混了!
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他是梦不是命 投递于 2016-12-2 17:46:07
看一漂亮MM,苦无搭讪办法,路旁一砖头,拣起,上前,“同学,这是你掉的吧?”
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egdtox 投递于 2016-12-3 11:14:12
奇葩也是一种有才的战斗力爆表!
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近日我浮躁 投递于 2016-12-9 03:54:58
OMG!介是啥东东!!!
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