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Report generated 2 years ago
https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-white
Your general SEO Checkup Score
Archived
83/100
SEO Score
Average SEO score of top 100 sites: 74%
This website received an SEO score of 83 out of 100, which is higher than the average score of 74. Our analysis has identified 11 important issues that can be addressed to further enhance your website's performance and improve its search engine visibility.
11 Failed
0 Warnings
57 Passed
Common SEO issues
Score: 83
Failed: 4
Warnings: 0
Passed: 22
Meta Title Test100% of top 100 sites passed
  • Congratulations! Your webpage is using a title tag
Text: Do QR codes have to be black and white?
Meta Description Test97% of top 100 sites passed
  • Congratulations! Your webpage is using a meta description tag
Text: Do QR codes have to be black and white?
Google Search Results Preview Test
Desktop version
https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-whiteDo QR codes have to be black and white?Do QR codes have to be black and white?
Mobile version
https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-whiteDo QR codes have to be black and white?Do QR codes have to be black and white?
Social Media Meta Tags Test83% of top 100 sites passed
  • This webpage is using social media meta tags.
Open Graph Meta Tags
og:type
website
og:title
Do QR codes have to be black and white?
og:description
Do QR codes have to be black and white?
og:site_name
QR Code Scanner Online
og:url
https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-white
og:image
/images/do-qr-codes-have-to-be-black-and-white.jpg
og:image:type
image/jpg
og:image:width
800
og:image:height
450
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.
40code33codes25color20colors18make
Keywords Usage Test81% of top 100 sites passed
  • Congratulations! You are using your keywords in your meta-tags, which help search engines to properly identify the topic of your page.
Keyword(s) included in Title tag
Keyword(s) included in Meta-Description tag
Keywords Cloud Test
animatedappealingattentionattractiveaudiencebackgroundbenefitsblackblogbrandcampaigncampaignscenterchoosecodecodescolorcolorscombinationcontrastconveycreatecreatingcreativecustomdarkdesigndesigneddifferentdistanceeasiereasilyeasyeffectivenessensureespeciallyexamplefinallyfontforegroundgeneratorgeneratorsgettinggreatgreenhavehavingimageknowlightlikelikelylittlelogolooklookingmakemakesmarketingmaterialsmeansmessageneednotepadonlinepackagingpeoplepolicyprivacyproductpromotequicklyreadreadablerecognizablerunningscanscannerscanningschemeservicespecifystandsupportssuretargettermstooltrackuniqueunitagusedusingvisuallywantwayswebsitewhiteworryyears
Competitor Domains Test
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Heading Tags Test70% of top 100 sites passed
  • Congratulations! Your webpage contains headings tags.
H1 tags
Do QR codes have to be black and white?
H2 tags
Why QR codes are often black and white
The benefits of black and white QR codes
QR codes don't have to be black and white
You can use any color combination you want for the QR Codes
There are many benefits to using different colors for the QR Codes
You can also use colors to track your QR code's effectiveness
How to make QR codes more visually appealing
Robots.txt Test94% of top 100 sites passed
  • This website is using a robots.txt file.
Sitemap Test75% of top 100 sites passed
  • Your website lacks a sitemap file. Sitemaps can help robots index your content more thoroughly and quickly. Read more on Google's guidelines for implementing the sitemap protocol.
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SEO Friendly URL Test40% of top 100 sites passed
  • Congratulations! All links from your webpage are SEO friendly.
Image Alt Test71% of top 100 sites passed
  • All of your webpage's "img" tags have the required "alt" attribute.
Responsive Image Test38% of top 100 sites passed
  • All images in this page are properly sized for different users' viewports.
Image Aspect Ratio Test72% of top 100 sites passed
  • All image display dimensions match the natural aspect ratio.
Inline CSS Test2% of top 100 sites passed
  • Your webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test99% of top 100 sites passed
  • Congratulations! Your page does not use HTML deprecated tags.
Google Analytics Test69% of top 100 sites passed
  • Congratulations! Your webpage is using Google Analytics.
Favicon Test100% of top 100 sites passed
  • favicon
    Congratulations! Your website appears to have a favicon.
JS Error Test74% of top 100 sites passed
  • We've found JavaScript errors on your webpage!
See results list
Console Errors Test33% of top 100 sites passed
  • This webpage doesn't have any warnings or errors caught by the Chrome DevTools Console.
Charset Declaration Test100% of top 100 sites passed
  • This webpage has a character encoding declaration.
Content-Type: text/html; charset=utf-8
Social Media Test80% of top 100 sites passed
  • Your website is not connected with social media using the API's provided by Facebook, Google +, Twitter, Pinterest, or using addthis.com
Speed optimizations
Score: 93
Failed: 1
Warnings: 0
Passed: 19
HTML Page Size Test34% of top 100 sites passed
  • Congratulations! The size of your webpage's HTML is 7.06 Kb and is under the average webpage's HTML size of 33 Kb. Faster loading websites result in a better user experience, higher conversion rates, and generally better search engine rankings.
DOM Size Test17% of top 100 sites passed
  • The Document Object Model (DOM) of this webpage has 190 nodes which is less than the recommended value of 1,500 nodes.
HTML Compression/GZIP Test96% of top 100 sites passed
  • Congratulations! Your webpage is successfully compressed using br compression on your code. Your HTML is compressed from 21.9 Kb to 7.06 Kb (68% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test68% of top 100 sites passed
  • Your website loading time is around 0.49 seconds and this is under the average loading speed which is 5 seconds.
Accurate loading speed and website loading speed monitor

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JS Execution Time Test79% of top 100 sites passed
  • The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
  • Congratulations, your page has fewer than 20 http requests. A higher number of http requests results in a user's browser needing to request a large number of objects from your server, which will ultimately slow down the loading of your web page.
Content size by content type
Content type
Percent
Size
image
87.1 %
503.90 Kb
javascript
11.5 %
66.49 Kb
html
1.3 %
7.80 Kb
other
0.0 %
275 B
css
0.0 %
0 B
font
0.0 %
0 B
TOTAL
100%
578.46 Kb
Requests by content type
Content type
Percent
Requests
javascript
37.5 %
3
image
25.0 %
2
other
25.0 %
2
html
12.5 %
1
css
0.0 %
0
font
0.0 %
0
TOTAL
100%
8
Content size by domain
Domain
Percent
Size
qr-code-scanner.net
88.5 %
511.70 Kb
googletagmanager.com
7.1 %
41.25 Kb
google-analytics.com
3.4 %
19.94 Kb
static.cloudflareinsights.com
0.9 %
5.32 Kb
cloudflareinsights.com
0.0 %
255 B
TOTAL
100%
578.46 Kb
Requests by domain
Domain
Percent
Requests
qr-code-scanner.net
37.5 %
3
google-analytics.com
25.0 %
2
googletagmanager.com
12.5 %
1
static.cloudflareinsights.com
12.5 %
1
cloudflareinsights.com
12.5 %
1
TOTAL
100%
8
Page Cache Test (Server Side Caching)100% of top 100 sites passed
  • Congratulations, you have a caching mechanism on your website. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
  • Congratulations! Your website 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 Test96% of top 100 sites passed
  • Your webpage is serving all images, javascript and css resources from CDNs.
See results list
Modern Image Format Test32% of top 100 sites passed
  • This webpage is not serving images in a modern format. Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
See results list
Image Caching Test99% of top 100 sites passed
  • Congratulations! Your website is using cache headers for your images and the browsers will display these images from the cache.
JavaScript Caching Test98% of top 100 sites passed
  • Your webpage is not using uncached JavaScript resources from your domain.
CSS Caching Test98% of top 100 sites passed
  • Your webpage is not using uncached CSS resources from your domain.
JavaScript Minification Test93% of top 100 sites passed
  • Congratulations! Your website's JavaScript files are minified!
See results list
CSS Minification Test97% of top 100 sites passed
  • Your webpage is not using CSS resources from the same domain.
See results list
Render Blocking Resources Test29% of top 100 sites passed
  • This webpage is not using render-blocking resources.
Nested Tables Test99% of top 100 sites passed
  • Congratulations, your page does not use nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
  • Congratulations! Your webpage does not use frames.
Doctype Test100% of top 100 sites passed
  • Congratulations! Your website has a doctype declaration:
<!DOCTYPE html>
URL Redirects Test96% of top 100 sites passed
  • Congratulations! Your URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Server and security
Score: 77
Failed: 2
Warnings: 0
Passed: 7
URL Canonicalization Test92% of top 100 sites passed
SSL Checker and HTTPS Test100% of top 100 sites passed
  • Your website is successfully using HTTPS, a secure communication protocol over the Internet.

The certificate is not used before the activation date.

The certificate has not expired.

The hostname "qr-code-scanner.net" is correctly listed in the certificate.

The certificate should be trusted by all major web browsers.

The certificate was not revoked.

The certificate was signed with a secure hash.

Certificate Chain:
Server certificate
Common name
qr-code-scanner.net
Organization
Cloudflare, Inc.
Location
San Francisco, California, US
Subject Alternative Names (SANs)
qr-code-scanner.net
Not valid before
Tue, June 7o 2022, 12:00:00 am (z)
Not valid after
Tue, June 6o 2023, 11:59:59 pm (z)
Signature algorithm
ecdsaWithSha256
Issuer
Cloudflare Inc ECC CA-3
Intermediate certificate
Common name
Cloudflare Inc ECC CA-3
Organization
Cloudflare, Inc.
Location
US
Not valid before
Mon, January 27o 2020, 12:48:08 pm (z)
Not valid after
Tue, December 31o 2024, 11:59:59 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
Baltimore CyberTrust Root
Root certificate
Common name
Baltimore CyberTrust Root
Organization
Baltimore
Location
IE
Not valid before
Fri, May 12o 2000, 6:46:00 pm (z)
Not valid after
Mon, May 12o 2025, 11:59:00 pm (z)
Signature algorithm
sha1WithRsaEncryption
Issuer
Baltimore CyberTrust Root
Mixed Content Test (HTTP over HTTPS)100% of top 100 sites passed
  • Congratulations, this webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test92% of top 100 sites passed
  • This webpage is using the HTTP/2 protocol.
Safe Browsing Test100% of top 100 sites passed
  • This site is not currently listed as suspicious (no malware or phishing activity found).
Server Signature Test88% of top 100 sites passed
  • Congratulations, your server signature is off.
Directory Browsing Test100% of top 100 sites passed
  • Congratulations! Your server has disabled directory browsing.
Plaintext Emails Test93% of top 100 sites passed
  • Congratulations! Your webpage does not include email addresses in plaintext.
Mobile usability
Score: 100
Failed: 0
Warnings: 0
Passed: 3
Meta Viewport Test94% of top 100 sites passed
  • This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=yes" />
Media Query Responsive Test99% of top 100 sites passed
  • Congratulations, your website uses media query technique, which is the base for responsive design functionalities.
Mobile Snapshot Test
Mobile view
Advanced SEO
Score: 41
Failed: 4
Warnings: 0
Passed: 6
Structured Data Test59% of top 100 sites passed
  • Your webpage doesn't take the advantages of HTML Microdata specifications in order to markup structured data. View Google's guide for getting started with microdata.
Custom 404 Error Page Test75% of top 100 sites passed
  • Your website is not using a custom 404 error page. Default 404 error pages result in a poor experience - it can mislead users into thinking an entire site is down or broken, greatly increases the chance they leave your site entirely, and looks unprofessional. 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 track the source of broken links in your site.
Noindex Tag Test99% of top 100 sites passed
  • Your webpage does not use the noindex meta tag. This means that your webpage will be read and indexed by search engines.
Canonical Tag Test95% of top 100 sites passed
  • Your webpage is using the canonical link tag. This tag specifies that the URL: https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-white is preferred to be used in search results. Please ensure that this specification is correct, as canonical tags are often hard-coded and may not always reflect the latest changes in a site's URL structure.
<link href="https://qr-code-scanner.net/blog/do-qr-codes-have-to-be-black-and-white" rel="canonical"/>
Nofollow Tag Test
  • Your webpage does not use the nofollow meta tag. This means that search engines will crawl all links from your webpage.
Disallow Directive Test
  • Your robots.txt file does not use the disallow directive. This means that the whole website can be crawled by search engines.
Meta Refresh Test95% of top 100 sites passed
  • Congratulations, this webpage is not using a meta refresh tag.
SPF Records Test94% of top 100 sites passed
  • Your DNS server is not using an SPF record. SPF (Sender Policy Framework) allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record or TXT record in the Domain Name System (DNS). You can find more information about SPF records here.
Ads.txt Validation Test80% of top 100 sites passed
  • The request of ads.txt file has an unexpected Content-Type header: text/html; charset=utf-8. In order for this resource to be easily accessed by the DSPs and advertisers, its Content-Type header should be text/plain or text/plain; charset=utf-8.
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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