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https://blog.trezor.io/trezor-wallet-backups-explained-bip-39-12-or-24-words-vs-slip-39-20-words-d7f2c5371569
Your general SEO Checkup Score
Archived
71/100
SEO Score
Average SEO score of top 100 sites: 75%
This website received an SEO score of 71 out of 100, which is below the average score of 75. However, there are 16 important issues that need to be fixed to improve your website's ranking on search engines and enhance its overall performance.
16 Failed
8 Warnings
49 Passed
Issues to fix
HIGH
To provide a good user experience, Google recommends that sites should aim for a Largest Contentful Paint duration of 2.5 seconds or less.
HIGH
It is recommended to avoid URL parameters and to use hyphens to separate words in the URL structure, rather than underscores.
HIGH
To address URL canonicalization issues, it is recommended to select a primary URL for your webpage and set up redirects from all other variations to the preferred one.
HIGH
Connect your webpage with social media networks using APIs or AddThis, as social signals are becoming increasingly important for search engines to validate a site's trustworthiness and authority.
HIGH
Using images in a modern format can significantly reduce the file size and improve the loading speed of a webpage, providing a better user experience and potentially increasing engagement.
HIGH
Users may abandon pages that take longer than 5 seconds to load, resulting in a potential loss of up to 50% of visitors. Faster loading pages can lead to increased traffic, better conversions, and higher sales.
HIGH
Consider reducing the HTML size to improve loading times and retain visitors.
MEDIUM
Reducing the Document Object Model (DOM) size can lead to faster page loading times, improved site performance, and better user experience by decreasing the amount of time it takes for the browser to process and render the page.
LOW
Keep in mind that the NOINDEX meta tag instructs search engines not to index a webpage. Please verify if this is the intended behavior, as the webpage will not appear in search engine results.
LOW
While a canonical link tag can help in resolving duplicate content issues, it's important to verify that the specified URL is accurate, especially if the site's URL structure has been recently updated.
LOW
Without an SPF record, spammers can easily spoof emails from this domain, potentially leading to compromised email security and deliverability issues.
LOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
LOW
Consider moving inline CSS styles to an external stylesheet to improve site performance and maintain separation of content and design.
LOW
This website either lacks a favicon or it has not been referenced properly.
Common SEO issues
Score: 69
Failed: 4
Warnings: 4
Passed: 17
Meta Title Test100% of top 100 sites passed
  • This webpage is using a title tag with a length of 123 characters. While there's no target number of characters, titles should be descriptive and concise. We recommend using a title with a length between 20 - 60 characters in order to fit Google Search results that have a 600-pixel limit.
Text: Trezor Wallet Backups Explained: BIP39 (12 or 24 words) vs. SLIP39 (20 words) | by Lucien Bourdon | Apr, 2025 | Trezor Blog
Length: 123 characters
Meta Description Test92% of top 100 sites passed
  • This webpage is using a meta description tag.
Text: Safeguarding your crypto wallet means having a reliable backup. Your wallet backup, also called a recovery phrase or seed phrase, ensures that if your device is lost, damaged, or stolen, you can…
Length: 195 characters
Google Search Results Preview Test
Desktop version
https://blog.trezor.io/trezor-wallet-backups-explained-bip-39-12-or-24-words-vs-slip-39-20-words-d7f2c5371569?gi=4ee0ff6b9db8Trezor Wallet Backups Explained: BIP39 (12 or 24 words) vs. SLIP39 (20 words) | by Lucien Bourdon | Apr, 2025 | Trezor BlogSafeguarding your crypto wallet means having a reliable backup. Your wallet backup, also called a recovery phrase or seed phrase, ensures that if your device is lost, damaged, or stolen, you can…
Mobile version
https://blog.trezor.io/trezor-wallet-backups-explained-bip-39-12-or-24-words-vs-slip-39-20-words-d7f2c5371569?gi=4ee0ff6b9db8Trezor Wallet Backups Explained: BIP39 (12 or 24 words) vs. SLIP39 (20 words) | by Lucien Bourdon | Apr, 2025 | Trezor BlogSafeguarding your crypto wallet means having a reliable backup. Your wallet backup, also called a recovery phrase or seed phrase, ensures that if your device is lost, damaged, or stolen, you can…
Social Media Meta Tags Test89% of top 100 sites passed
  • This webpage is using social media meta tags.
Open Graph Meta Tags
og:site_name
Medium
og:type
article
og:title
Trezor Wallet Backups Explained: BIP39 (12 or 24 words) vs. SLIP39 (20 words)
og:description
Safeguarding your crypto wallet means having a reliable backup. Your wallet backup, also called a recovery phrase or seed phrase, ensures…
og:url
https://blog.trezor.io/trezor-wallet-backups-explained-bip-39-12-or-24-words-vs-slip-39-20-words-d7f2c5371569
og:image
https://miro.medium.com/v2/resize:fit:1200/1*CArlBJnoJuObAeDLAX6icw.jpeg
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.
46wallet44backup25share24trezor15shares
Keywords Usage Test48% of top 100 sites passed
  • The most common keywords of this webpage are distributed well across the important HTML tags. This helps search engines to properly identify the topic of this webpage.
Keyword
Title tag
Meta description
Headings
wallet
backup
share
trezor
shares
Keywords Cloud Test
accessaccountsaddressesaskedassetsbackupbackupsbitcoinblogbourdoncalledchoosecreatecryptodamageddevicedigitalexpertexplainedfailurefewerfollowfreefundshardwarehavehavinghelphumaninsteadintroducedjustkeyslaterlikelistlistenlongloselosinglostlucienmakingmeansmultimultiplenearlyneednumberofficialonlineopenpartsphrasepointprivatepublicationreadreadablereasonsrecoverrecoveryreliablerequiredrestorerightsafesecuresecurelysecuritysessionsetupsharesharessignsimplesinglesplitstandardstandardsstartstolenstorestoriessupportsupportedthresholdtrezorupgradeusedusingwalletwalletswantwordwordsworkworksworldwrite
Competitor Domains Test
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Heading Tags Test62% of top 100 sites passed
  • This webpage contains too many H1 tags! H1 tags should re-inforce the intended topic of your page to search engines - too many tags may make the topic less clear, or look like spam tactics. Consider using less than 5 H1 tags.
H1 tags
Trezor Wallet Backups Explained: BIP39 (12 or 24 words) vs. SLIP39 (20 words)
How Wallet Backups Work
BIP39: The 12 or 24-word wallet backup
SLIP39: The Upgradeable 20-Word Multi-Share Backup
Frequently Asked Questions
Final Thoughts: Which One Should You Use?
Need Expert Help With Your Wallet Backup?
H2 tags
Trezor Blog
What is BIP39?
How BIP39 Works
Key Features of BIP39
BIP39 Limitations
What is SLIP39?
How SLIP39 Works
Key Features of SLIP39
Example: A 2-of-3 SLIP39 Setup
Which Trezor devices support SLIP39 backups?
Can I upgrade my existing BIP39 wallet to SLIP39 directly?
Can I upgrade a SLIP39 backup later?
Can I use a passphrase with BIP39 and SLIP39?
What if Trezor stops making hardware wallets?
Is SLIP39 compatible with multisig?
How many shares can I create with SLIP39?
What happens if I lose a SLIP39 share?
Why use Multi-Share instead of just splitting a regular backup myself?
What is the difference between a 12-word and a 24-word BIP39 backup? Is 24 words safer?
Why does SLIP39 use 20 words?
Should I upgrade to SLIP39?
Trezor Hardware Wallet Setup Session | Trezor Expert
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Published in Trezor Blog
Written by Lucien Bourdon
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Robots.txt Test99% of top 100 sites passed
  • This website is using a robots.txt file.
https://blog.trezor.io/robots.txt
Sitemap Test83% of top 100 sites passed
  • This website has a sitemap file.
https://blog.trezor.io/sitemap/sitemap.xml
SEO Friendly URL Test29% of top 100 sites passed
  • This webpage contains URLs that are not SEO friendly!
See results list
Image Alt Test78% of top 100 sites passed
  • This webpage is using "img" tags with empty or missing "alt" attribute!
See full list
Responsive Image Test29% of top 100 sites passed
  • All images in this webpage are properly sized for different users' viewports.
Image Aspect Ratio Test75% of top 100 sites passed
  • All image display dimensions match the natural aspect ratio.
Inline CSS Test10% of top 100 sites passed
  • This webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test94% of top 100 sites passed
  • This webpage does not use HTML deprecated tags.
Google Analytics Test72% 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!
JS Error Test83% of top 100 sites passed
  • There are no severe JavaScript errors on this webpage.
Console Errors Test27% of top 100 sites passed
  • This webpage has some warnings caught by the Chrome DevTools Console!
See results list
Charset Declaration Test96% of top 100 sites passed
  • This webpage has a character encoding declaration.
Content-Type: text/html; charset=utf-8
Social Media Test75% of top 100 sites passed
  • This webpage is not connected with social media using the API's provided by Facebook, Google +, Twitter, Pinterest, or using addthis.com
Speed optimizations
Score: 65
Failed: 6
Warnings: 4
Passed: 15
HTML Page Size Test23% of top 100 sites passed
DOM Size Test56% of top 100 sites passed
  • The Document Object Model (DOM) of this webpage has 1,537 nodes which is greater than the recommended value of 1,500 nodes! A large DOM size negatively affects site performance and increases the page load time.
HTML Compression/GZIP Test99% of top 100 sites passed
  • This webpage is successfully compressed using gzip compression on your code. The HTML code is compressed from 270.95 Kb to 52.6 Kb (81% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test71% of top 100 sites passed
  • The loading time of this webpage (measured from N. Virginia, US) is around 6.92 seconds and is greater than the average loading speed which is 5 seconds!
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JS Execution Time Test53% of top 100 sites passed
  • The JavaScript code used by this webpage is executed in more than 2 seconds!
Page Objects Test
  • This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Content size by content type
Content type
Percent
Size
javascript
72.6 %
1.56 Mb
image
15.7 %
346.17 Kb
font
7.3 %
160.99 Kb
css
1.9 %
42.58 Kb
html
1.9 %
42.10 Kb
other
0.6 %
13.20 Kb
TOTAL
100%
2.15 Mb
Requests by content type
Content type
Percent
Requests
javascript
55.8 %
48
other
18.6 %
16
font
12.8 %
11
image
8.1 %
7
html
2.3 %
2
css
2.3 %
2
TOTAL
100%
86
Content size by domain
Domain
Percent
Size
cdn-client.medium.com
36.7 %
810.20 Kb
gstatic.com
30.9 %
682.47 Kb
miro.medium.com
15.6 %
343.98 Kb
glyph.medium.com
6.9 %
151.36 Kb
googletagmanager.com
5.2 %
115.84 Kb
blog.trezor.io
2.6 %
56.64 Kb
cdn.branch.io
1.1 %
23.38 Kb
fonts.gstatic.com
0.5 %
11.02 Kb
static.cloudflareinsights.com
0.3 %
6.95 Kb
google.com
0.1 %
3.07 Kb
Other
0.1 %
1.75 Kb
TOTAL
100%
2.15 Mb
Requests by domain
Domain
Percent
Requests
cdn-client.medium.com
47.7 %
41
blog.trezor.io
18.6 %
16
glyph.medium.com
12.8 %
11
miro.medium.com
7.0 %
6
gstatic.com
3.5 %
3
google.com
2.3 %
2
api2.branch.io
2.3 %
2
static.cloudflareinsights.com
1.2 %
1
googletagmanager.com
1.2 %
1
cdn.branch.io
1.2 %
1
Other
2.3 %
2
TOTAL
100%
86
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 Test95% of top 100 sites passed
  • This webpage is serving all images, javascript and css resources from CDNs.
See results list
Modern Image Format Test43% 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.
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Image Metadata Test72% of top 100 sites passed
  • This webpage is not using images with large metadata.
Image Caching Test95% of top 100 sites passed
  • This webpage is not using uncached images from same domain.
JavaScript Caching Test96% of top 100 sites passed
  • This webpage is using cache headers for all JavaScript resources.
CSS Caching Test98% of top 100 sites passed
  • This webpage is not using uncached CSS resources from same domain!
JavaScript Minification Test98% of top 100 sites passed
  • All JavaScript files used by this webpage are minified.
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CSS Minification Test100% of top 100 sites passed
  • All CSS resources used by this webpage are minified.
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Render Blocking Resources Test15% of top 100 sites passed
  • This webpage is not using render-blocking resources.
Nested Tables Test100% of top 100 sites passed
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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.
<!DOCTYPE html>
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  • The Time To First Byte value of this webpage is 1.108 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.

1.108 s

0.8 s

1.8 s

First Contentful Paint Test90% of top 100 sites passed
  • The First Contentful Paint value of this webpage is 2.057 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.

2.057 s

1.8 s

3 s

Largest Contentful Paint Test77% of top 100 sites passed
  • The Largest Contentful Paint duration of this webpage is 4.6 seconds. To provide a good user experience, Google recommends that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.

4.6 s

2.5 s

4 s

Largest Contentful Paint element within the viewport:
<img class="fu vz ie xb" src="https://miro.medium.com/v2/da:true/resize:fit:0/5c..." loading="lazy" role="presentation">
Cumulative Layout Shift Test91% of top 100 sites passed
  • The CLS score of this webpage is 0.0020. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.

0.002

0.1

0.25

DOM element which contributes the most to CLS score:
Html:
Score: 0.0020
Server and security
Score: 83
Failed: 1
Warnings: 0
Passed: 9
SSL Checker and HTTPS Test100% of top 100 sites passed
  • This 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 "blog.trezor.io" 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
blog.trezor.io
Subject Alternative Names (SANs)
blog.trezor.io
Not valid before
Wed, April 30o 2025, 10:56:49 am (z)
Not valid after
Tue, July 29o 2025, 11:56:45 am (z)
Signature algorithm
ecdsaWithSha256
Issuer
WE1
Intermediate certificate
Common name
WE1
Organization
Google Trust Services
Location
US
Not valid before
Wed, December 13o 2023, 9:00:00 am (z)
Not valid after
Tue, February 20o 2029, 2:00:00 pm (z)
Signature algorithm
ecdsaWithSha384
Issuer
GTS Root R4
Root certificate
Common name
GTS Root R4
Organization
Google Trust Services LLC
Location
US
Not valid before
Wed, June 22o 2016, 12:00:00 am (z)
Not valid after
Sun, June 22o 2036, 12:00:00 am (z)
Signature algorithm
ecdsaWithSha384
Issuer
GTS Root R4
Mixed Content Test (HTTP over HTTPS)100% 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 Test99% of top 100 sites passed
  • This webpage is using the HTTP/2 protocol.
HSTS Test84% of top 100 sites passed
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strict-transport-security: max-age=31536000; includesubdomains; preload
Safe Browsing Test100% of top 100 sites passed
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Server Signature Test95% 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 Test97% of top 100 sites passed
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Mobile usability
Score: 100
Failed: 0
Warnings: 0
Passed: 3
Meta Viewport Test92% of top 100 sites passed
  • This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1,maximum-scale=1" />
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
Mobile view
Advanced SEO
Score: 65
Failed: 5
Warnings: 0
Passed: 5
Structured Data Test66% of top 100 sites passed
  • This webpage is using structured data.
See results list
Custom 404 Error Page Test80% of top 100 sites passed
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Noindex Tag Test99% of top 100 sites passed
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Canonical Tag Test93% of top 100 sites passed
  • This webpage is using the canonical link tag. This tag specifies that the URL: https://blog.trezor.io/trezor-wallet-backups-explained-bip-39-12-or-24-words-vs-slip-39-20-words-d7f2c5371569 should be the preferred version of this page. The canonical tag can be useful when there are similar versions of the same content on several URLs (e.g., such as e-commerce sites where URL modifiers like sort parameters are appended to a product page's URL). 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.
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Nofollow Tag Test
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Meta Refresh Test98% of top 100 sites passed
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SPF Records Test94% of top 100 sites passed
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Ads.txt Validation Test67% of top 100 sites passed
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