Check to view the backlinks for your website. Backlinks are any links to your website from an external site. Relevant backlinks from authority sites are critical for higher search engine rankings. Our backlink checker also helps identify low-quality backlinks that can lead to search engine penalties for your website.

Backlinks Test

This test will show up to 10 competitors that could rank in the same organic search results as the target domain. Competitor domains are sorted by Domain Rank, which is measuring the importance of the domain based on the volume and quality of links that are pointing to it. The rank is on a scale from 0 to 1000, with 1000 meaning the domain is highly important and its links communicate a strong amount of popularity.

Competitor Domains Test

Test your site for potential URL canonicalization issues. Canonicalization describes how a site can use slightly different URLs for the same page (e.g., if http://www.example.com and http://example.com displays the same page but do not resolve to the same URL). If this happens, search engines may be unsure about which URL is the correct one to index. <a href="https://www.mattcutts.com/blog/seo-advice-url-canonicalization/">Learn more about canonicalization issues.</a>

URL Canonicalization Test

Check if your webpage is using structured data markup. Search engines use structured data to better understand the content of your webpage and to create rich snippets in search results (which helps increase click-through rate to your site).

Structured Data Test

This SEO test will check if your website is using a custom 404 error page. By creating a custom 404 error page, you can improve your website's user experience by letting users know that only a specific page is missing/broken (and not your entire site), providing them helpful links, the opportunity to report bugs, and potentially <a href="https://www.searchviu.com/en/404-errors-google-analytics/" target="_blank">track the source of broken links in your site</a>.

Custom 404 Error Page Test

Check if your webpage is using the robots meta tag or the X-Robots-Tag HTTP header to instruct search engines not to show your site in search results pages.

Noindex Tag Test

Check if your webpage is using the canonical link tag. The canonical link tag is used to nominate a primary page when you have several pages with duplicate or very similar content.

Canonical Tag Test

Check if your webpage is using the robots meta tag or the X-Robots-Tag HTTP header to instruct search engines not to follow the links on your page. Outgoing links marked with this tag will tell search engines not to follow or crawl that particular link. Google recommends that nofollow tags are used for paid advertisements on your site and links to pages that have not been vetted as trusted sites (e.g., links posted by users of your site).

Nofollow Tag Test

Check if your robots.txt file is instructing search engine crawlers to avoid parts of your website. The disallow directive is used in robots.txt to tell search engines not to crawl and index a file, page, or directory.

Disallow Directive Test

This test will check if your webpage is using a refresh meta tag. This tag causes a web page to refresh automatically after a specified amount of time. Users generally don't expect automatic refreshes, so they can be disorienting. Refreshing also moves focus to the top of the page, which may frustrate or confuse users, particularly those who rely on screen readers or other assistive technologies.

Meta Refresh Test

Check if your DNS records contains an SPF record. SPF (Sender Policy Framework) records allow email systems to verify if a given mail server has been authorized to send mail on behalf of your domain. Creating an SPF record increases email delivery rates by reducing the likelihood of your email being marked as spam.

SPF Records Test

This test will check if your website's ads.txt file has a valid format.

Ads.txt Validation Test

Your webpage's meta title is an HTML tag that defines the title of your page. This tag displays your page title in search engine results, at the top of a user&#39;s browser, and also when your page is bookmarked in a list of favorites. A concise, descriptive title tag that accurately reflects your page&#39;s topic is important for ranking well in search engines.

Meta Title Test

Your webpage's meta description is an HTML tag that is intended to provide a short and accurate summary of your page. Search engines use meta descriptions to help identify the a page&#39;s topic - they may also use meta descriptions by displaying them directly in search engine results. Accurate and inviting meta descriptions can help boost both your search engine rankings and a user&#39;s likelihood of clicking through to your page.

Meta Description Test

Check how your page might appear in Google search results. Google search results typically uses your webpage title, url and meta-description in order to display relevant summarized information about your site. If these elements are too long, Google will truncate their content. Webpage title up to 70 characters in length, and webpage descriptions up to 160 characters in length are recommended in order to optimize readability.

Google Search Results Preview Test

This test will check if the analyzed webpage is using social media meta tags. While this type of meta tags don't affect what people see when they visit the webpage, they exist to provide information about it to search engines and social media platforms. Also, when a link is shared, both Facebook and Twitter will scrape the associated webpage and read its meta tags to display the appropriate information. Thus, social media meta tags will help to amplify your webpage's content, will improve brand visibility and will help to generate website traffic.

Social Media Meta Tags Test

Check the most common keywords in your page and their usage (number of times used). This can help give a quick overview of the keywords and topics that crawlers may associate with your web page.

Most Common Keywords Test

This will check if your most common keywords are used in the webpage's title and description

Keywords Usage Test

The Keyword Cloud is a visual representation of keywords used on your website. This will show you which words are frequently used in the content of your webpage. Keywords having higher density are presented in larger fonts and displayed in alphabetic order.

Keywords Cloud Test

Related keywords will show search terms for which this URL shows up in the top 20 organic results.

Related Keywords Test

Check if your webpage is using any H1 and H2 HTML header tags. Header tags are not visible to users, but help clarify and support the overall theme or purpose of your page to search engines. The H1 tag represents the most important heading, e.g., the title of the page or blog post. The H2 tag represents the second most important headings on the webpages, e.g., the subheadings.

Heading Tags Test

Check if your website is using a robots.txt file. When search engine robots crawl a website, they typically first access a site&#39;s robots.txt file. Robots.txt tells Googlebot and other crawlers what is and is not allowed to be crawled on your site.

Robots.txt Test

Check if the website has a sitemap. A sitemap is important as it lists all the web pages of the site and let search engine crawlers to crawl the website more intelligently. A sitemap also provides valuable metadata for each webpage.

Sitemap Test

Check if images on your webpage are using alt attributes. If an image cannot be displayed (e.g., due to broken image source, slow internet connection, etc), the alt attribute provides alternative information. Using relevant keywords and text in the alt attribute can help both users and search engines better interpret the subject of an image.

Image Alt Test

This test will check if all of your page's images are appropriately sized for your user's viewport. Ideally, your page should not serve images that are larger than the version that's rendered on the user's screen. Serving an image larger than the user's viewport results in scaling down the image, use of unnecessary bandwidth, and slower page load time.

Responsive Image Test

This test will check if all images are displayed with a correct aspect ratio. If a rendered image has an aspect ratio that's significantly different from the aspect ratio in its source file (the natural aspect ratio), the rendered image may look distorted, possibly creating an unpleasant user experience.

Image Aspect Ratio Test

Check if your webpage is using old, deprecated <a href="http://www.w3schools.com/tags/default.asp">HTML tags</a>. These tags will eventually lose browser support and your web pages may render incorrectly as browsers drop support for these tags.

Deprecated HTML Tags Test

Check if your website is connected with Google Analytics. Google Analytics is a popular, free website analysis tool that helps provide insights about your site&#39;s traffic and demographics.

Google Analytics Test

Check if your site is using and correctly implementing a favicon. Favicons are small icons that appear in your browser&#39;s URL navigation bar. They are also saved next to your URL&#39;s title when your page is bookmarked. This helps <a href="https://seositecheckup.com/articles/creating-an-unforgettable-brand-favicons-and-other-tools">brand your site</a> and make it easy for users to navigate to your site among a list of bookmarks.

Favicon Test

Check your page for JavaScript errors. These errors may prevent users from properly viewing your pages and impact their user experience. Sites with poor user experience tend to rank worse in search engine results.

JS Error Test

This will check the Chrome DevTools Console for warnings and errors. These errors may prevent users from properly viewing your pages and impact their user experience. Sites with poor user experience tend to rank worse in search engine results.

Console Errors Test

This test will check if the webpage has a character encoding declaration ("charset"). If the server doesn't specify a character encoding format when it sends an HTML file, the browser may display some characters incorrectly to users. Google recommends using the Unicode/UTF-8 character set when possible.

Charset Declaration Test

This will check if the webpage is using a viewport meta tag, which is necessary for responsive web design. Without a viewport meta tag, mobile devices render pages at typical desktop screen widths and then scale the pages down, making them difficult to read. Setting the viewport meta tag lets you control the width and scaling of the viewport so that it's sized correctly on all devices.

Meta Viewport Test

Check if your page implements responsive design functionalities using the media query technique. The &#39;@media&#39; rule allows different style rules for screen sizes. Media query techniques allow different presentation and content to be served depending on the output device, helping ensure that your website renders optimally on all devices and platforms.

Media Query Responsive Test

Check how your website renders on a mobile device.

Mobile Snapshot Test

Check if your website is using HTTPS, a secure protocol for sending/receiving data over the Internet. Using HTTPS indicates that an additional encryption/authentication layer was added between client and server. HTTPS should be used by any site that collects sensitive customer data such as credit card information. Even for sites that do not collect such data, <a href="https://webmasters.googleblog.com/2014/08/https-as-ranking-signal.html" target="_blank">switching to https helps users</a> by improving privacy and overall security. Google is increasingly using https as a positive ranking factor.

SSL Checker and HTTPS Test

This will check if all resources are loaded over a secure HTTPS connection. Mixed content occurs when initial HTML is loaded over a secure HTTPS connection, but other resources (such as images, videos, stylesheets, scripts) are loaded over an insecure HTTP connection. This is called mixed content because both HTTP and HTTPS content are being loaded to display the same page, and the initial request was secure over HTTPS. Browsers may block mixed content, so fixing this issue helps ensure your content loads as intended.

Mixed Content Test (HTTP over HTTPS)

Checks if the webpage and all resources are served over HTTP/2. As the first major HTTP protocol update since 1997, HTTP/2 offers several key improvements such as increased speed and security.

HTTP2 Test

This test will check if your webpage is using the Strict-Transport-Security header.

HSTS Test

Check your webpage for plaintext email addresses. Any e-mail address posted in public is likely to be automatically collected by computer software used by bulk emailers (a process known as e-mail address harvesting). A spam harvester can read through the pages in your site and extract plaintext email addresses which are then added to bulk marketing databases (resulting in more inbox spam). There are several methods for email obfuscation.

Plaintext Emails Test

This test will check if all links to external pages that have the target="_blank" attribute also have the rel="noopener" or rel="noreferrer" attribute. When you link to an external site using the target="_blank" attribute, security and performance issues arise: The external pages you link to may run on the same process as your page. If the other page is running a lot of JavaScript, your page's performance may suffer. The other page can access your window object with the window.opener property. This may allow the other page to redirect your page to a malicious URL. Adding rel="noopener" or rel="noreferrer" to your target="_blank" links avoids these issues.

Unsafe Cross-Origin Links Test

Check your page&#39;s HTML size. HTML size is the size of all the HTML code on your web page - this size does not include images, external JavaScript or CSS files.

HTML Page Size Test

This test will check the size of the DOM tree. When a web page is loaded, the browser creates a Document Object Model (DOM) of the page. All the tags in the HTML document are called nodes and the sum of them is translated as the DOM size. A large DOM tree will likely increase memory usage, cause longer style calculations, and may produce slower layout rendering.

DOM Size Test

Check if your website is using HTML compression. HTML compression plays an important role in improving website speed by finding similar strings within a text file and replacing them temporarily to reduce overall file size.

HTML Compression/GZIP Test

Check your website's loading speed. Page speed is an important factor in search engine rankings and overall site success. Pages that take longer than 5 seconds to load can lose up to 50% of users. Faster webpages result in higher traffic, better conversions, and increased sales over slower loading pages.

Site Loading Speed Test

This test will check the total execution time of the JavaScript code. Reducing the JavaScript execution time, in general, refers to decreasing the amount of time spent to parse, compile and execute the JavaScript code. Improving JavaScript execution time will result in faster page load times, and improved user experience (which Google uses as a factor in its ranking algorithms).

JS Execution Time Test

Check if all the objects requested by this webpage can be retrieved. If they are not retrievable, your page may display incorrectly, leading to a bad user experience and lower search engine rankings.

Page Objects Test

Check if your webpage's resources (images, javascript and css files) are served via CDNs.

CDN Usage Test

This test will check if the webpage is serving images in modern formats. Image formats like <a href="https://jpeg.org/jpeg2000/" target="_blank" rel="noopener noreferrer">JPEG 2000</a>, <a href="https://jpeg.org/jpegxr/" target="_blank" rel="noopener noreferrer">JPEG XR</a>, and <a href="https://developers.google.com/speed/webp" target="_blank" rel="noopener noreferrer">WebP</a> often provide better compression than PNG or JPEG, which means faster downloads and less data consumption for users.

Modern Image Format Test

This test will check if the images used in a webpage have large metadata (more than 16% of the image size). Image Metadata refers to additional information (thumbnails, comments, date-times, copyright, camera model and settings, geo location, etc) which is stored along with the image. Most of this information is useless to site visitors and isn't required by browsers to render images.

Image Metadata Test

Checks if your page is using an image expires tag, which specifies a future expiration date for your images. Browsers will see this tag and cache the image until the specified date (it doesn't re-fetch the unchanged image from your server). This speeds up your site the next time returning visitors arrive at your site and require the same image.

Image Caching Test

Checks if your page is using caching headers for all JavaScript resources. Users browsers will check for these headers and, if any, will cache the JavaScript resources until the specified date (so that it does not keep re-fetching the unchanged file from your server). This speeds up your site the next time returning visitors arrive at your site and require the same JavaScript resource.

JavaScript Caching Test

Checks if your page is using caching headers for all CSS resources. Users browsers will check for these headers and, if any, will cache the CSS resources until the specified date (so that it does not keep re-fetching the unchanged file from your server). This speeds up your site the next time returning visitors arrive at your site and require the same CSS resource.

CSS Caching Test

Checks if any external javascript files used in your page is minified. Minified files reduce page size and overall load time.

JavaScript Minification Test

Checks if any CSS files used in your page is minified. Minified files reduce page size and overall load time.

CSS Minification Test

This test will check if any of the webpage's JavaScript or CSS resources is blocking the render process. When the browser encounters a render blocking resource, it stops downloading the rest of the resources until these critical files are processed. In the meantime, the entire rendering process is put on hold. Aim to reduce the impact of these render-blocking URLs by inlining critical resources, deferring non-critical resources, and removing anything unused. This can greatly improve page load times and the user experience (factors which Google uses in its ranking algorithms).

Render Blocking Resources Test

Check how many redirects your URL will perform to resolve to the final destination URL. Redirects often cause search engine indexing issues and can also lead to some minor loading delays. Google recommends removing or keeping redirects to a minimum.

URL Redirects Test

This test will check the Time To First Byte (TTFB) score of the analyzed webpage. TTFB is a metric that measures the time between the request for a resource and when the first byte of a response begins to arrive. To provide a good user experience, <a href="https://web.dev/ttfb/" target="_blank" rel="noopener noreferrer">Google recommends</a> that sites should strive to have Time To First Byte of 0.8 seconds or less.

Time To First Byte Test

This test will check the First Contentful Paint (FCP) score of the analyzed webpage. FCP is a metric that measures the time from when the page starts loading to when any part of the page's content is rendered on the screen. To provide a good user experience, <a href="https://web.dev/fcp/" target="_blank" rel="noopener noreferrer">Google recommends</a> that sites should strive to have a First Contentful Paint of 1.8 seconds or less.

First Contentful Paint Test

This test will check the Largest Contentful Paint (LCP) score of the analyzed webpage. LCP is a Core Web Vitals metric that measures when the largest element (image or text block) of a given web page becomes visible within the viewport, relative to when the page first started loading. To provide a good user experience, <a href="https://web.dev/lcp/" target="_blank" rel="noopener noreferrer">Google recommends</a> that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.

Largest Contentful Paint Test

This test will check the Cumulative Layout Shift (CLS) score of the analyzed webpage. CLS is a Core Web Vitals metric calculated by summing all layout shifts that aren't caused by user interaction. Basically, whenever a page loads, certain page elements unexpectedly shift, affecting the way users interact with the webpage. A website with a low CLS has a stable page display, which does not shift elements around and ensures a steady, predictable loading of all website content. To provide a good user experience, <a href="https://web.dev/cls/" target="_blank" rel="noopener noreferrer">Google recommends</a> that sites should strive to have a CLS score of 0.1 or less.

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