Your HTML title tag appears in browser tabs, bookmarks and in search result pages.

Make your title tags clear, concise (50-60 characters) and include your most important keywords.

Meta descriptions allow you to influence how your web pages are described and displayed in search results. A good description acts as a potential organic advertisement and encourages the viewer to click through to your site.

Keep it short and to the point; the ideal meta description should contain between 70 and 320 characters (spaces included).

Ensure that each of your web pages have a unique, straightforward meta description that contains most important keywords. These keywords are especially important because they appear in bold when they match the user’s search query (See the Google Preview below).

Check your Google Search Console (Search Appearance > HTML Improvements) for any warning messages to identify meta descriptions that are too long/short or duplicated across more than one page.

Great, your website is structured using HTML headings (<H1> to <H6>).

Use your keywords in the headings and make sure the first level (<H1>) includes your most important keywords. Never duplicate your title tag content in your header tag.

While it is important to ensure every page has an <H1> tag, only include more than one per page if you're using HTML5. Instead, use multiple <H2> - <H6> tags.

Alternative text allows you to add a description to an image. Since search engine crawlers cannot see images, they rely on alternative text attributes to determine relevance to a search query. Alternative text also helps makes an image more likely to appear in a Google image search and is used by screen readers to provide context for visually impaired users.

It looks like most or all of your images have alternative text. Check the images on your website to make sure accurate and relevant alternative text is specified for each image on the page. Try to minimize the number of alt text characters to 150 or less (including spaces!) to optimize page load times.

Links pass value from one page to another. This value is called 'link juice'.

A page's link juice is split between all the links on that page so lots of unnecessary links on a page will dilute the value attributed to each link. There's no exact number of links to include on a page but best practice is to keep it under 200.

Using the Nofollow attribute in your links prevents some link juice, but these links are still taken into account when calculating the value that is passed through each link, so using lots of NoFollow links can still dilute PageRank.

Great, you aren't using ‪underscores (these_are_underscores) in your URLs.

Google sees hyphens as word separators while underscores aren't recognized. So the search engine sees www.example.com/green_dress as www.example.com/greendress. The bots will have a hard time determining this URL's relevance to a keyword.

Great, you aren't using Flash or frames on your site.

While it often looks nicer, Flash content can't be properly indexed by search engines. Maximize your SEO efforts by avoiding Flash.

Search engines also have problems with frames because they can't crawl or index the content within them. Avoid them if you can and use a NoFrames tag when you can't.

Your domain is the human-readable address of your website on the Internet. How long your domain name has been registered does have a limited impact on your rankings in search results. The newer your domain the harder it can be to achieve a higher rank. To help offset this, consider buying a second-hand domain name.

Do you know that you can register your domain for up to 10 years? By doing so, you will show the world that you are serious about your business.

80% of adult Internet users now have a smartphone. You should definitely be optimizing your website to render on the most popular mobile devices.

Favicons are the small icons that appear next to your site’s name or URL in a browser. They can be displayed in the address bar, a browser tab title or bookmarks. Make sure it is consistent with your brand.

Here is a way one company used a special favicon to improve user experience.

Great, your declared language matches the language detected on the page.

Make sure your declared language is the same as the language detected by Google.

Tips for multilingual websites:

• Define the language of the content in each page's HTML code.
• Specify the language code in the URL as well (e.g., "mywebsite.com/fr/mycontent.html").
• Use hreflang tags to specify language and country for Google, and the "content-language" meta tag to specify the language and country for Bing.

Register the various typos of your domain to protect your brand from cybersquatters.

Get to know the technologies used for your website. Some codes might slow down your website. Ask your webmaster to take a look at this.

Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.

Popular Analytics Tools Include: Google Analytics, Quantcast™, AdobeAnalytics™, Piwik™, chartbeat™, Clicky™, ClickTale™, etc.

Specifying language/character encoding can prevent problems with the rendering of special characters.

• Use a serious issuer to purchase your SSL certificate
• Redirect all of your HTTP pages to the HTTPS version of your website
• Use HTTP Strict Transport Security in your headers
• Renew your SSL certificate every year, before it expires
• Make sure that all of your content (CSS, etc.) is linked to HTTPS
• Update your XML sitemap to ensure the URLs include HTTPS and update the robots.txt file to reference this version
• Register the HTTPS website in Google & Bing Search Console/Webmaster Tools