Archived
73/100
Average SEO score of top 100 sites: 74%
This website received an SEO score of 73 out of 100, which is below the average score of 74. However, there are 17 important issues that need to be fixed to improve your website's ranking on search engines and enhance its overall performance.
17 Failed
4 Warnings
53 Passed
Common SEO issues
Score: 63
Failed: 8
Warnings: 1
Passed: 17
Meta Title Test100% of top 100 sites passed
- This webpage is using a title tag.
Meta Description Test96% of top 100 sites passed
- This webpage is using a meta description tag with a length of 138 characters. We recommend using well-written and inviting meta descriptions with a length between 150 and 220 characters (spaces included).
Google Search Results Preview Test
Desktop version
https://www.sciencefocus.com/science/fun-facts101 random fun facts that will blow your mindOur collection of the best and most random interesting trivia covers animals, biology, geography, space, history, the world and much more.
Mobile versionhttps://www.sciencefocus.com/science/fun-facts101 random fun facts that will blow your mindOur collection of the best and most random interesting trivia covers animals, biology, geography, space, history, the world and much more.
Most Common Keywords Test
- There is likely no optimal keyword density (search engine algorithms have evolved beyond keyword density metrics as a significant ranking factor). It can be useful, however, to note which keywords appear most often on your page and if they reflect the intended topic of your page. More importantly, the keywords on your page should appear within natural sounding and grammatically correct copy.
Keywords Usage Test45% of top 100 sites passed
- The most common keywords of this webpage are not distributed across the important HTML tags! Primary keywords should appear in title tag, meta description and heading tags to help Search Engines to properly identify the topic of this webpage.
Keyword
Title tag
Meta description
Headings
years
earth
have
science
world
Keywords Cloud Test
Competitor Domains Test
Understand your competitors' SEO and backlink profile
Get related competitors and their domain authority score in relation to your domain.
Robots.txt Test99% of top 100 sites passed
- This website is using a robots.txt file.
Sitemap Test74% of top 100 sites passed
- This website has a sitemap file.
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Broken Links Test
Check your webpage for broken links!
Finding and fixing broken links on your webpage will help both user experience and search engine rankings.
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SEO Friendly URL Test25% of top 100 sites passed
- All links from this webpage are SEO friendly.
Image Alt Test71% of top 100 sites passed
- This webpage is using "img" tags with empty or missing "alt" attribute!
Responsive Image Test28% of top 100 sites passed
- Not all images in this webpage are properly sized! This webpage is serving images that are larger than needed for the size of the user's viewport.
Image Aspect Ratio Test75% of top 100 sites passed
- Not all image display dimensions match the natural aspect ratio! Fix aspect ratio issues to avoid distorted images on this website!
Inline CSS Test8% of top 100 sites passed
- This webpage is using inline CSS styles!
Google Analytics Test65% of top 100 sites passed
- This webpage is using Google Analytics.
Favicon Test100% of top 100 sites passed
- This website either doesn't have a favicon or this has not been referenced correctly!
Backlinks Test
Get a full and detailed list of your backlinks!
To view your total number of backlinks and referring domains, please sign-up for a free trial!
JS Error Test79% of top 100 sites passed
- We've found JavaScript errors on this webpage!
Console Errors Test41% of top 100 sites passed
- This webpage has some errors caught by the Chrome DevTools Console!
Charset Declaration Test100% of top 100 sites passed
- This webpage has a character encoding declaration.
Speed optimizations
Score: 66
Failed: 7
Warnings: 2
Passed: 16
HTML Page Size Test21% of top 100 sites passed
- The size of this webpage's HTML is 332.35 Kb, and is greater than the average size of 33 Kb! This can lead to slower loading times, lost visitors, and decreased revenue. Good steps to reduce HTML size include: using HTML compression, CSS layouts, external style sheets, and moving javascript to external files.
DOM Size Test54% of top 100 sites passed
- The Document Object Model (DOM) of this webpage has 1,351 nodes which is less than the recommended value of 1,500 nodes.
HTML Compression/GZIP Test97% of top 100 sites passed
- This webpage is successfully compressed using gzip compression on your code. The HTML code is compressed from 2105.15 Kb to 332.35 Kb (84% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test66% of top 100 sites passed
- The loading time of this webpage (measured from N. Virginia, US) is around 10.97 seconds and is greater than the average loading speed which is 5 seconds!
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JS Execution Time Test71% of top 100 sites passed
- The JavaScript code used by this webpage is executed in more than 3.5 seconds! When the JavaScript code takes a long time to execute, it slows down the page performance in several ways: longer download times, main thread bottlenecks, delays of "Time To Interactive", memory leaks, etc.
Page Objects Test
- This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Page Cache Test (Server Side Caching)100% of top 100 sites passed
- This webpage is using a caching mechanism. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
- This webpage does not include flash objects (an outdated technology that was sometimes used to deliver rich multimedia content). Flash content does not work well on mobile devices, and is difficult for crawlers to interpret.
CDN Usage Test97% of top 100 sites passed
- This webpage is serving all images, javascript and css resources from CDNs.
Modern Image Format Test38% of top 100 sites passed
Image Metadata Test72% of top 100 sites passed
- This webpage is using images with large metadata (more than 16% of the image size)! Stripping out unnecessary metadata tags can improve not only the loading time but also the security and privacy of a webpage.
Image Caching Test97% of top 100 sites passed
- This website is using cache headers for images and the browsers will display these images from the cache.
JavaScript Caching Test95% of top 100 sites passed
- This webpage is using cache headers for all JavaScript resources.
CSS Caching Test96% of top 100 sites passed
- This webpage is using cache headers for all CSS resources.
JavaScript Minification Test96% of top 100 sites passed
- All JavaScript files used by this webpage are minified.
CSS Minification Test100% of top 100 sites passed
- All CSS resources used by this webpage are minified.
Render Blocking Resources Test10% of top 100 sites passed
- This webpage is using render blocking resources! Eliminating render-blocking resources can help this webpage to load significantly faster and will improve the website experience for your visitors.
Nested Tables Test99% of top 100 sites passed
- This webpage is not using nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
- This webpage does not use frames.
Doctype Test100% of top 100 sites passed
- This webpage has a doctype declaration.
URL Redirects Test98% of top 100 sites passed
- This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Time To First Byte Test98% of top 100 sites passed
- The Time To First Byte value of this webpage is 0.006 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.
0.006 s
0.8 s
1.8 s
First Contentful Paint Test94% of top 100 sites passed
- The First Contentful Paint value of this webpage is 1.888 seconds. To provide a good user experience, Google recommends that sites should strive to have a First Contentful Paint value of 1.8 seconds or less.
1.888 s
1.8 s
3 s
Largest Contentful Paint Test90% of top 100 sites passed
- The Largest Contentful Paint duration of this webpage is 3.2 seconds. To provide a good user experience, Google recommends that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.
3.2 s
2.5 s
4 s
Cumulative Layout Shift Test94% of top 100 sites passed
- The CLS score of this webpage is 0.0084. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.
0.0084
0.1
0.25
Server and security
Score: 93
Failed: 1
Warnings: 0
Passed: 9
URL Canonicalization Test97% of top 100 sites passed
- https://www.sciencefocus.com/science/fun-facts and https://sciencefocus.com/science/fun-facts resolve to the same URL.
SSL Checker and HTTPS Test100% of top 100 sites passed
- This website is successfully using HTTPS, a secure communication protocol over the Internet.
Mixed Content Test (HTTP over HTTPS)98% of top 100 sites passed
- This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test100% of top 100 sites passed
- This webpage is using the HTTP/2 protocol.
HSTS Test82% of top 100 sites passed
- This webpage is using the Strict-Transport-Security header.
Safe Browsing Test100% of top 100 sites passed
- This website is not currently listed as suspicious (no malware or phishing activity found).
Server Signature Test98% of top 100 sites passed
- The server signature is off for this webpage.
Directory Browsing Test100% of top 100 sites passed
- Directory browsing is disabled for this website.
Plaintext Emails Test100% of top 100 sites passed
- This webpage does not include email addresses in plaintext.
Unsafe Cross-Origin Links Test49% of top 100 sites passed
- This webpage is using target="_blank" links without rel="noopener" or rel="noreferrer" attribute, which can expose it to performance and security issues!
Mobile usability
Score: 100
Failed: 0
Warnings: 0
Passed: 3
Meta Viewport Test88% of top 100 sites passed
- This webpage is using a viewport meta tag.
Media Query Responsive Test98% of top 100 sites passed
- This webpage is using CSS media queries, which is the base for responsive design functionalities.
Mobile Snapshot Test
Advanced SEO
Score: 98
Failed: 1
Warnings: 1
Passed: 8
Structured Data Test53% of top 100 sites passed
- This webpage is using structured data.
Custom 404 Error Page Test67% of top 100 sites passed
- This website is using a custom 404 error page. We recommend to have a custom 404 error page in order to improve the website's user experience by letting users know that only a specific page is missing/broken (and not the entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links.
Meta Refresh Test96% of top 100 sites passed
- This webpage is not using a meta refresh tag.
SPF Records Test95% of top 100 sites passed
- This DNS server is using an SPF record.
Ads.txt Validation Test68% of top 100 sites passed
- This website is using an Authorized Digital Sellers (ads.txt) file, but it contains duplicated or invalid records! These warnings highlight points of concern which should not affect the processing of the authorized sellers list, but which should be resolved as soon as possible.
Spell Check Test
Check your webpage for misspellings!
Finding and fixing misspellings on your webpage will help both user experience and search engine rankings.
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