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Polyfill.io Low Trust Online Casino

September 3, 2026 at 7:53 PM
Low Trust Online Casino
Checked by Website Reputation Checker
Table of Contents
Danger Zone
Risky Territory
Caution Advised
Trusted but Verify
Safe & Secure

Polyfill โ†’ Safety Check

First checked May 8, 2026 at 1:37 PM
Website content and technical signals analyzed
Method: automated checks.
Low Trust Online Casino This site is classified as Low Trust Online Casino based on multiple risk signals, including 9 blacklist detections. These risks are driven by active warning signals despite the site's longer domain history.
Trust signal radar Normalized trust signals for polyfill.io Domain Maturity: 4917 days Domain Maturity Warning Cleanliness: 9 detections Warning Cleanliness Safety Level: 2 negative tags, 1 warning signal Safety Level Positive Signals: 3 positive signals Positive Signals Popularity: Tranco rank 42,967 Popularity Trust Zone: .io Trust Zone Operational Signals: 0 detected services Operational Signals Location Credibility: Hosting country US Location Credibility
Figure 1. Trust signal radar for polyfill.io. Larger shaded area indicates stronger trust signals.

How we scored polyfill.io

On-page mentions:
18+, Sports, Casino, Cash Back
Tech signals:
Cloudflare Browser Insights
Positive signals:
  • popular site
  • a long-term domain history (13.5 years)
  • an active SSL certificate (3 months)
Negative signals:
  • security-provider warnings
  • multiple malware or phishing blacklist detections (9)
Context signals:
  • content related to online casinos; sports
Last checked September 3, 2026 at 7:53 PM by Gridinsoft Trust Model v2.5.3

Polyfill.io is rated as a low-trust casino. This usually indicates limited operating history, weak reputation evidence, or licensing claims that cannot be independently confirmed.

Main user risk is financial: contested withdrawals, bonus terms interpreted against the player, delayed responses, and poor escalation channels. When deposits are made in crypto, recovery options are typically very limited.

This is a risk assessment, not a legal determination. If you proceed, verify license status in the regulator register and limit deposits to an amount you can afford to lose.

What is Polyfill?

Polyfill.io is rated as a low-trust casino. This usually indicates limited operating history, weak reputation evidence, or licensing claims that cannot be independently confirmed.

Main user risk is financial: contested withdrawals, bonus terms interpreted against the player, delayed responses, and poor escalation channels. When deposits are made in crypto, recovery options are typically very limited.

Figure 2. Website screenshot for Polyfill.io. 2026-09-03 22:53:54

This is a risk assessment, not a legal determination. If you proceed, verify license status in the regulator register and limit deposits to an amount you can afford to lose.

This domain was registered March 18, 2013 at 7:00 PM through the company GoDaddy.com, LLC and had the owner Gridinsoft privacy protected.

Is polyfill.io safe?

โ€” Unfortunately, not likely.

๐Ÿšจ Gridinsoft blocks this website because it was classified as low trust online casino.

Use caution with polyfill.io. Its current Gridinsoft trust score is 35/100; review the site-specific findings below before use.

What are the risks of polyfill.io?

This website shows characteristics associated with low-trust online casinos, including limited reputation evidence and unverified licensing details.

Why is polyfill.io marked "Low Trust Online Casino"?

Gridinsoft evaluates polyfill.io, focusing on suspicious content indicators (Blacklisted by Security Providers, Blacklisted), hosting technology and infrastructure, SSL certificate status, website reputation across multiple databases, customer reviews from various independent platforms (1 reviews). We weigh these indicators to calculate the trust score.

Note: Automated systems are not perfect โ€” while the evidence suggests risk, there is still a chance the site is legitimate. We recommend you check the website using detailed analysis or by contacting the company directly through verified channels.

Polyfill Digital Footprints

A structured view of the site's detected themes, page signals, and related online footprint elements.

18+
Sports
Registration Form

Automated page analysis detected form or data-entry functionality on polyfill.io. Forms can involve user-submitted information, so verify ownership and privacy terms before entering data.

Casino
Cash Back
Cloudflare Browser Insights

This website is proxied through Cloudflare's CDN/network and has Cloudflare Browser Insights enabled.

Blacklisted by Security Providers

Security intelligence signal: A security-provider signal contributes to the automated assessment of polyfill.io. Publicly displayable provider verdicts, when available, are reported separately; some source details may be restricted by license.

Popular Site

This site shows elevated traffic signals relative to similar domains; this is generally positive but does not by itself prove legitimacy.

Long Term Domain

This site is registered for an extended period, which is generally a positive continuity signal.

Established Domain

polyfill.io has maintained active domain presence over time, indicating operational continuity.

Listed by Gridinsoft

Gridinsoft Internet Security classified this site as unsafe. As a VirusTotal partner, our detections contribute to broader protection across tools and browsers.

Color Guide
  • Requires special attention Marks high-risk findings that should be reviewed first.
  • Exercise caution Highlights areas involving user data, payments, or permissions.
  • Positive indicators Shows trust signals that support the site's reliability.
  • Neutral General context that does not increase or reduce risk on its own.

External provider warnings: 9/29 Low Trust Online Casino

This section shows what independent external security sources say about this site.

A warning appears when one or more sources report malware, phishing, abuse, or other safety concerns. Each row shows the source and its verdict.

If no source reports a warning, the site is shown as clear in this section.

0xSI_f33d
Phishing
ADMINUSLabs
Malicious
Chong Lua Dao
Malicious
Dr.Web
Malicious
Emsisoft
Malware
Fortinet
Malware
Sucuri SiteCheck
Malicious
alphaMountain.ai
Suspicious
Forcepoint ThreatSeeker
Suspicious

External provider results for Polyfill.io, last checked September 3, 2026. โ€” VirusTotal

Domain Information

Created March 18, 2013 at 7:00 PM Updated: July 21, 2026 at 7:47 AM ยท Expires: March 18, 2029 at 7:00 PM
Domain Age 13.5 years
Registrant Gridinsoft privacy protected US (United States)
Registrar GoDaddy.com, LLC IANA ID: 146
Abuse Email [email protected]
Domain Status Client: Delete ยท Renew ยท Transfer Prohibited +1 more ยท DNSSEC: UNSIGNED
Top Level Domain .io Generic TLD

Technical Details

IP Address 104.21.62.62
Hosting Provider AS13335 Cloudflare, Inc. San Francisco, California, US
SSL Certificate WE1 QUIC ยท Valid for: 3 months ยท from August 29, 2026 at 3:57 PM ยท to November 27, 2026 at 4:46 PM
Name Servers greg.ns.cloudflare.com
margaret.ns.cloudflare.com

Content Analysis

Website title Non GamStop Casinos for UK Players - New Casino Options
Website description Compare non GamStop casinos ranked by licence, bonus terms, games and payment methods, with mini reviews of the top-rated sites for GB players.
Primary Language
Mentioned hosts (4)
static.cloudflareinsights.com fonts.gstatic.com fonts.googleapis.com polyfill.io

Security Analysis

Detection Signatures These signatures are used to generate the security fingerprint below.
18+ Sports Registration Form Casino Cash Back
Security Fingerprint Unique identifier based on site analysis

How to block Polyfill.io?

Our Anti-Malware can automatically block access to polyfill.io if it is flagged as malicious.

  1. Install and run the protection.
  2. The program will block flagged domains and remove related threats.

Exclusion

If you believe polyfill.io is safe, you can add it to the exclusion list:

  1. Open Gridinsoft Anti-Malware โ†’ Tools โ†’ Ignore List.
  2. Go to the Internet tab and add polyfill.io.

See detailed instructions for more options.

Are You the Owner?

If you own Polyfill.io and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.

Leave a review

Share your real experience with polyfill.io. Is it a trustworthy site, or did you encounter any issues? The more detail you provide, the more helpful your review is for others!

Publication Tip

- Your feedback helps us improve our security scores.
- Detailed reviews describing your real-life experience have a much higher chance of being published.
- Your email remains confidential.

Gridinsoft Portal
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Your score for polyfill.io
35
points /100
The score is based on a 1-100 scale, with 100 being the most reputable.
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