Page speed is a measurement of how quickly a webpage loads. Slow page speeds can negatively impact user experience through higher bounce rates and less time on page, as well as search engine optimization by limiting the number of pages search engines can crawl. Optimizing code by removing unnecessary characters, compressing images, minimizing redirects, leveraging browser caching, and reducing server response times below 200ms can help increase page speed.

1. Page Speed
Page speed is a measurement of
how fast the content on your page
loads.
(the time it takes to fully display
the content on a specific page)
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2. Google has indicated site speed (and as a result, page speed) is one of
the signals used by its algorithm to rank pages. And research has
shown that Google might be specifically measuring time to first byte as
when it considers page speed. In addition, a slow page speed means
that search engines can crawl fewer pages using their allocated crawl
budget, and this could negatively affect your indexation.
Page speed is also important to user experience. Pages with a longer
load time tend to have higher bounce rates and lower average time on
page. Longer load times have also been shown to negatively affect
conversions.
From Google Bloghttps://webmasters.googleblog.com/2010/04/using-
site-speed-in-web-search-ranking.html
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3. By optimizing your code (including removing spaces, commas, and
other unnecessary characters), you can dramatically increase your
page speed. Also remove code comments, formatting, and unused
code. Google recommends using YUI Compressor for both CSS and
JavaScript.
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4. Reduce redirects
Each time a page
redirects to another
page, your visitor faces
additional time waiting
for the HTTP request-
response cycle to
complete.
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5. Why Opt for a Redirect?
The http redirect code can be used in following cases:
•The URL of a website is broken or not working.
•The website needs to be redirected to a new domain.
•A particular webpage or website is no more active.
•For testing a specific web page.
•Website design going through a renovation.
•Two existing websites are being merged into one.
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6. 301 Redirect
A 301 redirect is a permanent redirect which moves a user or a
crawler to a new URL and tells that the content has moved
permanently.
301 redirect is used in a situation when you have changed domain
of a website or the website is launched in a new CMS and the URL
structure has been changed. The 301 redirect for old content
moves to a new content and tell the search engines that you have
moved to a new page.
With a permanent redirect, all your web pages, traffic value, page
authority, and page rank will be permanently redirected to the new
website URL an remain intact.
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7. 302 Redirect
A 302 redirect is a temporary redirect
which is used in a case when you move to
a new page for some time and will come
back to the original page later. This will tell
crawlers to continue indexing old page
which has impact on SEO as the search
engine will continue ranking the old page.
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8. Leverage browser caching
Browsers cache a lot of information (stylesheets, images,
JavaScript files, and more) so that when a visitor comes back to
your site, the browser doesn't have to reload the entire page.
Use a tool like YSlowto see if you already have an expiration
date set for your cache. Then set your "expires" header for how
long you want that information to be cached. In many cases,
unless your site design changes frequently, a year is a
reasonable time period
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9. Server response time is the amount
of time it takes for a web server to
respond to a request from a browser.
No matter how optimized your web
pages are for speed, if your server
response time is slow your pages will
display slow. Google says "You
should reduce your server response
time under200ms".
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10. Optimize images
Be sure that your images are no larger than they need to be, that they
are in the right file format (PNGs are generally better for graphics with
fewer than 16 colors while JPEGs are generally better for photographs)
and that they are compressed for the web.
Use CSS sprites to create a template for images that you use frequently
on your site like buttons and icons. CSS sprites combine your images
into one large image that loads all at once (which means fewer HTTP
requests) and then display only the sections that you want to show. This
means that you are saving load time by not making users wait for
multiple images to load.
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15 Tips to Speed Up Your Website

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a)Server
1. Leverage browser caching
2. Enable Keep-Alive
3. Enable gzip compression
4. Make landing page redirects cacheable
5. Use a CDN
b) Content elements
1. Minimize redirects
2. Remove query strings from static resources
3. Specify a character set
4. Minify your codes
5. Avoid bad requests
6.Serve resources from a consistent URL
7. Reduce DNS lookups
c) CSS, JS and Images
1. Specify image dimensions
2. Optimize images
3. Put CSS at the top and JS at the bottom

13. GTMetrics.com
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