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SEO Score76/100
Average SEO score of top 100 sites: 75%
AI Visibility62/100
AI visibility score reflects brand reach in AI
Your site scored 76/100, just above the 75 average for top sites. We found 11 issues to fix, and they're what's holding you back from the top spots. And an AI Visibility Score of 62/100 means ChatGPT, Gemini and Perplexity mention your brand some of the time, with clear room to push further.
11 Failed
4 Warnings
48 Passed
Want to fix these issues and track your progress?
Issues to fix
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.
DetailsHIGH
To improve the website experience for your visitors, it is recommended to eliminate any render-blocking resources on this webpage.
DetailsHIGH
JavaScript errors can impact user experience and may prevent users from viewing the page properly.
DetailsMEDIUM
Serve properly sized images to reduce page loading times and to improve user's experience.
DetailsMEDIUM
By creating a custom 404 error page with helpful links and information, users are more likely to stay on the site and continue to explore.
DetailsMEDIUM
Add a Google Analytics script to this website to help in diagnosing potential SEO issues by monitoring site visitors and traffic sources.
DetailsLOW
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.
DetailsLOW
Without an SPF record, spammers can easily spoof emails from this domain, potentially leading to compromised email security and deliverability issues.
DetailsLOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
DetailsLOW
Consider adding the Strict-Transport-Security header to your webpage to ensure that web traffic is encrypted over HTTPS, mitigating the risk of man-in-the-middle attacks and other security threats.
DetailsAI Insights
Score:0
Failed:0
Warnings:0
Passed:5
Understanding the business context of a domain can help you create content that is more relevant to your target audience and differentiate your website from competitors.
What is this domain about
An affiliate-style casino review and bonus guide focused on Spinstar Casino promotions, games, payments, and player information.
Industry Niche
Online Casino Affiliate Reviews
Target Audience
Dutch-speaking online casino players looking for bonus details, game selection, payment options, and registration guidance.
Track your brand across ChatGPT, Gemini and Claude
Get an AI Presence Score, see which of your pages get cited, and follow how you compare with competitors over time.
This webpage is highly detailed and commercially focused, with strong coverage of bonuses, game categories, VIP perks, and player guidance. However, much of the content is promotional and some claims are not well supported by visible sourcing or official verification.
Content Strengths
- Comprehensive Offer Coverage
- Clear Section Structure
- Broad Game Overview
Content Weaknesses
- Heavy Promotional Tone
- Limited Source Support
- Mixed Confidence Claims
58%
Topical Relevance88%
Subject Expertise66%
Credibility40%
This webpage appears moderately relevant because most of the content stays focused on one casino brand, its bonuses, and related player information. Trust is limited by the lack of visible author attribution, company background, and source citations, even though policy links, contact emails, and an independent-site disclaimer are present.
Find out if your page design converts the visitors you earn
We score six things that decide whether a visitor stays and acts, from the first screen to the path to action, and rank every fix by effort and impact.
72%
The page appears fairly fresh because it contains explicit current-year copyright information and several time-bound references to a 2024 launch and 2025 renewal. The core content also reads like an active promotional review rather than archived material, though there are no visible publish or update timestamps on the main page content.
Positive Signals
- 2026 copyright notice
- 2024 launch and 2025 renewal
- Active promotional offers and bonuses
Staleness Signals
- No visible publish date
- No visible last-updated timestamp
The page already covers the core casino review journey well, but it still leaves room for stronger verification, deeper comparisons, and more user-focused guidance. The biggest opportunities are to improve trust signals, clarify complex bonus mechanics, and add practical decision-support content for players.
Quick Wins
- •Add a short 'How the bonus works' box with a plain-language example of wagering requirements.
- •Link the license claim to an official regulator or verification page.
- •Replace speculative payment wording with only confirmed deposit and withdrawal methods.
Common SEO issues
Score:68
Failed:3
Warnings:3
Passed:13
Meta Title Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a title tag.
Meta Description Test
92% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a meta description tag with a length of 134 characters. We recommend using well-written and inviting meta descriptions with a length between 150 and 220 characters (spaces included).
Desktop version
https://spinstar-bonus.nl/
Mobile version
https://spinstar-bonus.nl/
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 Test
48% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
aanbod
account
activeren
alle
alleen
automatisch
beschikbaar
beschikbare
betaalmethoden
biedt
binnen
blackjack
bonanza
bonus
bonussen
cashback
casino
costa
crash
crazy
daarnaast
dagen
dealer
deze
door
drops
eerste
elke
engels
extra
games
gaming
gates
geaccepteerd
gebruik
geen
gescheiden
gratis
hebt
heeft
houd
houdt
inzetten
inzetvereiste
jackpots
krijg
kunt
licentie
limieten
live
maar
meer
mega
minimale
moet
niet
niveau
olympus
onder
opnemen
persoonlijke
play
plus
programma
promotiecode
rica
roulette
slots
specifieke
speel
spelen
spellen
spins
spinstar
sportsbook
sportweddenschappen
staat
starburst
storting
stortingen
stortingslimieten
sweet
tafelspellen
toernooien
tools
tussen
uitbetalingen
verantwoord
verliezen
voor
website
welkomstbonus
welkomstpakket
werkt
wins
winst
worden
wordt
zijn
zoals
See which keywords rank your URL in Google’s top 20
Get key keyword metrics like average position, search volume, CPC, and more.
Understand your competitors' SEO and backlink profile
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Robots.txt Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is using a robots.txt file.
Sitemap Test
83% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website has a sitemap file.
Image Alt Test
78% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using "img" tags with empty or missing "alt" attribute!
Responsive Image Test
29% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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 Test
75% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All image display dimensions match the natural aspect ratio.
Google Analytics Test
72% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
A Google Analytics script is not detected on this page. While there are several tools available to monitor your site's visitors and traffic sources, Google Analytics is a free, commonly recommended program to help diagnose potential SEO issues.
Favicon Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website appears to have a favicon.
Get a full and detailed list of your backlinks
See every website linking to yours, along with detailed backlink data.
JS Error Test
83% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
We've found JavaScript errors on this webpage!
Console Errors Test
27% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage doesn't have any warnings or errors caught by the Chrome DevTools Console.
Charset Declaration Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Speed optimizations
Score:89
Failed:2
Warnings:0
Passed:18
HTML Page Size Test
23% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The size of this webpage's HTML is 27.54 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 Test
56% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Document Object Model (DOM) of this webpage has 723 nodes which is less than the recommended value of 1,500 nodes.
HTML Compression/GZIP Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is successfully compressed using zstd compression on your code. The HTML code is compressed from 103.49 Kb to 27.54 Kb (73% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test
71% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The loading time of this webpage (measured from N. Virginia, US) is around 2.24 seconds and this is under the average loading speed which is 5 seconds.
Accurate historical loading speed monitor and reports
Get detailed and accurate loading speed reports for your websites and see how your pages are being loaded over time.
JS Execution Time Test
53% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
7% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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
other
77.0 %
4.11 Mb
image
19.1 %
1.02 Mb
font
2.3 %
126.18 Kb
css
0.8 %
43.20 Kb
html
0.5 %
28.67 Kb
javascript
0.3 %
14.64 Kb
TOTAL
100%
5.34 Mb
Requests by content type
Content type
Percent
Requests
image
81.8 %
45
css
5.5 %
3
javascript
5.5 %
3
other
3.6 %
2
html
1.8 %
1
font
1.8 %
1
TOTAL
100%
55
Content size by domain
Domain
Percent
Size
spinstar-bonus.nl
97.5 %
5.20 Mb
fonts.gstatic.com
2.3 %
126.18 Kb
static.cloudflareinsights.com
0.2 %
10.10 Kb
fonts.googleapis.com
0.0 %
817 B
TOTAL
100%
5.34 Mb
Requests by domain
Domain
Percent
Requests
spinstar-bonus.nl
94.5 %
52
fonts.googleapis.com
1.8 %
1
fonts.gstatic.com
1.8 %
1
static.cloudflareinsights.com
1.8 %
1
TOTAL
100%
55
CDN Usage Test
95% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is serving all images, javascript and css resources from CDNs.
Modern Image Format Test
43% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using images in a modern format.
Image Metadata Test
72% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using images with large metadata.
Image Caching Test
95% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is using cache headers for images and the browsers will display these images from the cache.
JavaScript Caching Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using cache headers for all JavaScript resources.
CSS Caching Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using cache headers for all CSS resources.
JavaScript Minification Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All JavaScript files used by this webpage are minified.
CSS Minification Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All CSS resources used by this webpage are minified.
Render Blocking Resources Test
15% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
URL Redirects Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Time To First Byte Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Time To First Byte value of this webpage is 0.513 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.
0.513 s
0.8 s
1.8 s
First Contentful Paint Test
90% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The First Contentful Paint value of this webpage is 1.600 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.
1.6 s
1.8 s
3 s
Largest Contentful Paint Test
77% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Largest Contentful Paint duration of this webpage is 1.92 seconds. To provide a good user experience, Google recommends that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.
1.92 s
2.5 s
4 s
Largest Contentful Paint element within the viewport:
<video class="top-video" preload="none" autoplay="" muted="" loop="" playsinline="" webkit-playsinline="">
Cumulative Layout Shift Test
91% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The CLS score of this webpage is 0.0001. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.
0.0001
0.1
0.25
DOM element which contributes the most to CLS score:
Text: expand_more
Html: <span class="material-icons" style="font-size: 20px; position: absolute; right: 12px; ...">
Score: 0.0001
Server and security
Score:68
Failed:3
Warnings:0
Passed:4
URL Canonicalization Test
93% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
https://spinstar-bonus.nl/ and https://www.spinstar-bonus.nl/ should resolve to the same URL, but currently do not.
SSL Checker and HTTPS Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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 "spinstar-bonus.nl" 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
spinstar-bonus.nl
Subject Alternative Names
spinstar-bonus.nl, *.spinstar-bonus.nl
Not Valid Before
Mon, September 7, 2026 at 12:36:36 PM UTC
Not Valid After
Sun, December 6, 2026 at 1:36:24 PM UTC
Signature Algorithm
ecdsaWithSha256
Issuer
WE1
Root certificate
Common Name
WE1
Organization
Google Trust Services
Location
US
Not Valid Before
Wed, December 13, 2023 at 9:00:00 AM UTC
Not Valid After
Tue, February 20, 2029 at 2:00:00 PM UTC
Signature Algorithm
ecdsaWithSha384
Issuer
GTS Root R4
Mixed Content Test (HTTP over HTTPS)
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using the HTTP/2 protocol.
HSTS Test
84% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using the Strict-Transport-Security header! This is a security header that was created as a way to force the browser to use secure connections when a site is running over HTTPS.
Plaintext Emails Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
We've found 2 email addresses in your page code! We advise you to protect email links in a way that hides them from the spam harvesters.
Unsafe Cross-Origin Links Test
45% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using target="_blank" links without rel="noopener" or rel="noreferrer" attribute.
Mobile usability
Score:100
Failed:0
Warnings:0
Passed:3
Meta Viewport Test
92% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />Media Query Responsive Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using CSS media queries, which is the base for responsive design functionalities.
Advanced SEO
Score:45
Failed:3
Warnings:1
Passed:5
Structured Data Test
66% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using structured data.
Custom 404 Error Page Test
80% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This 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 the website entirely, and looks unprofessional. 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 Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using a meta refresh tag.
SPF Records Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This 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 Test
67% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website doesn't use an ads.txt file! Ads.txt is a text file that contains a list of Authorized Digital Sellers. The purpose of ads.txt files is to give advertisers and advertising networks the ability to verify who is allowed to sell advertising on your website.
