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SEO Score65/100
Average SEO score of top 100 sites: 75%
AI Visibility79/100
AI visibility score reflects brand reach in AI
Your site scored 65/100, below the 75 average for top sites. We found 17 issues to fix, and clearing them is how you move up. And an AI Visibility Score of 79/100 means ChatGPT, Gemini and Perplexity mention your brand some of the time, with clear room to push further.
17 Failed
2 Warnings
44 Passed
Want to fix these issues and track your progress?
Issues to fix
HIGH
To provide a good user experience, Google recommends that sites should aim for a Cumulative Layout Shift score of 0.1 or less.
DetailsHIGH
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
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.
DetailsHIGH
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.
DetailsMEDIUM
Minify all JavaScript files to reduce page size and loading time.
DetailsMEDIUM
Serve properly sized images to reduce page loading times and to improve user's experience.
DetailsMEDIUM
Avoid using distorted images, as they can have a negative impact on the user 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
Avoid performance and security issues by adding "rel=noopener" or "rel=noreferrer" to your "target=_blank" links.
DetailsLOW
Consider reducing the HTML size to improve loading times and retain visitors.
DetailsLOW
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.
DetailsLOW
Resolving errors identified by the Chrome DevTools Console can improve user experience.
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
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
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
Italian gambling affiliate and comparison site for casino bonuses, free spins, and betting promotions.
Industry Niche
Online Gambling Affiliate Marketing
Target Audience
Adult Italian-speaking players looking to compare online gambling offers, bonus terms, and licensed operators.
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 focused on gambling bonus comparison and provides a large amount of offer listings, guides, and FAQs. Its content is useful for users seeking quick comparisons, but it relies heavily on promotional listings and lacks deeper editorial transparency.
Content Strengths
- Clear Topic Focus
- Useful Comparison Layout
- Practical Beginner Guidance
Content Weaknesses
- Limited Editorial Transparency
- Thin Offer Verification Detail
- Promotional Repetition
74%
Topical Relevance96%
Subject Expertise72%
Credibility60%
This webpage is moderately trustworthy for topical relevance because nearly all visible content is focused on casino and betting bonuses. Credibility is helped by policy links, contact/about pages, social profiles, responsible gambling notices, and third-party badges, but expertise is weakened by promotional repetition and limited visible sourcing for the rankings and claims.
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.
95%
The page appears fresh overall because the main content includes explicit recent publish dates, current 2026 news items, and time-sensitive bonus listings. The homepage also reflects active updates in July 2026, which strongly outweigh the static footer elements.
Positive Signals
- Recent July 2026 articles
- Current 2026 sports news
- Active bonus listings and rankings
Staleness Signals
- Static 2025 footer copyright
The site already covers a broad set of gambling bonus topics, but much of the content is still list-driven and promotional. The biggest opportunities are to deepen verification, add comparison tools, and create more decision-support content for users who want to evaluate offers more confidently.
Quick Wins
- •Add a short methodology box near the top explaining how bonus rankings are verified and scored.
- •Insert official terms links beside each featured bonus card.
- •Add author names and brief expert bios to the homepage guides and news posts.
Common SEO issues
Score:77
Failed:3
Warnings:2
Passed:14
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.
Desktop version
https://bonusfree.net/
Mobile version
https://bonusfree.net/
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.
attiva
attivazione
benvenuto
bingo
bonus
bonusfree
casino
casinò
clausole
codice
come
condizioni
cosa
curacao
cyprus
dalla
dell
della
deposito
dettagli
devi
disponibili
entra
fino
formazioni
free
freespins
fress
funzionano
gioca
giochi
gioco
giri
giugno
gratis
gratta
gratuiti
guida
home
italia
italiani
leggi
licenza
limiti
luglio
machine
massimo
modo
mondiale
nessun
news
nuovi
offerta
offerte
oggi
online
poker
presente
previsto
prima
primo
probabili
promo
promozione
pronostici
pronostico
puntata
quote
real
recensione
registrazione
regolamento
requisiti
ricevi
scadenze
scegliere
scommesse
scopri
secondo
selezionate
semplice
sempre
senza
sito
slot
solo
spiegati
spin
spins
sportive
subito
supporto
termini
tipi
tranche
ukgc
ultime
utenti
vinci
wagering
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
Get related competitors and their domain authority score in relation to your domain.
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.
Not all image display dimensions match the natural aspect ratio! Fix aspect ratio issues to avoid distorted images on this website!
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.
This webpage is using Google Analytics.
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.
There are no severe 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 has some 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:54
Failed:8
Warnings:0
Passed:12
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 119.61 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 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 4,237 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 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 906.17 Kb to 119.61 Kb (87% 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 6.56 seconds and is greater than 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
image
84.7 %
3.65 Mb
javascript
7.7 %
340.82 Kb
css
3.9 %
172.55 Kb
html
2.5 %
111.22 Kb
font
1.1 %
46.83 Kb
other
0.0 %
863 B
TOTAL
100%
4.30 Mb
Requests by content type
Content type
Percent
Requests
image
56.4 %
101
javascript
20.1 %
36
css
18.4 %
33
font
3.4 %
6
other
1.1 %
2
html
0.6 %
1
TOTAL
100%
179
Content size by domain
Domain
Percent
Size
bonusfree.net
94.3 %
4.06 Mb
googletagmanager.com
2.6 %
114.22 Kb
platform-api.sharethis.com
1.1 %
47.30 Kb
fonts.gstatic.com
1.1 %
46.83 Kb
s.w.org
0.5 %
22.04 Kb
static.cloudflareinsights.com
0.3 %
11.31 Kb
platform-cdn.sharethis.com
0.2 %
6.63 Kb
fonts.googleapis.com
0.0 %
1.05 Kb
buttons-config.sharethis.com
0.0 %
969 B
flagcdn.com
0.0 %
886 B
Other
0.0 %
1.13 Kb
TOTAL
100%
4.30 Mb
Requests by domain
Domain
Percent
Requests
bonusfree.net
72.1 %
129
s.w.org
16.2 %
29
platform-cdn.sharethis.com
3.9 %
7
fonts.gstatic.com
3.4 %
6
googletagmanager.com
0.6 %
1
platform-api.sharethis.com
0.6 %
1
fonts.googleapis.com
0.6 %
1
flagcdn.com
0.6 %
1
static.cloudflareinsights.com
0.6 %
1
buttons-config.sharethis.com
0.6 %
1
Other
1.1 %
2
TOTAL
100%
179
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.
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.
This webpage is using JavaScript files that are not 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 0.198 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.
0.198 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 1.000 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 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 1.0 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 s
2.5 s
4 s
Largest Contentful Paint element within the viewport:
Text: Migliori Bonus Casinò Online ADM: offerte verificate e confrontate
Html: <h1 class="elementor-heading-title elementor-size-default">
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 0.5308. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.
0.5308
0.1
0.25
DOM element which contributes the most to CLS score:
Text: Come selezioniamo i bonus su Bonusfree Le offerte presenti su Bonusfree vengono...
Html: <div class="elementor-element elementor-element-72a1536 e-flex..." data-id="72a1536" data-element_type="container" data-e-type="container">
Score: 0.5179
Server and security
Score:63
Failed:2
Warnings:0
Passed:5
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://bonusfree.net/ and https://www.bonusfree.net/ 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 "bonusfree.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
bonusfree.net
Subject Alternative Names
bonusfree.net, *.bonusfree.net
Not Valid Before
Tue, June 30, 2026 at 10:05:14 AM UTC
Not Valid After
Mon, September 28, 2026 at 11:03:38 AM 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 using the Strict-Transport-Security header.
strict-transport-security:max-age=15768000
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.
This webpage does not include email addresses in plaintext.
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 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 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" />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:52
Failed:4
Warnings:0
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 using an SPF record.
v=spf1 a mx include:_spf.armada.it include:mailant.it ~all
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.
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.
