Polyfill.io Polyfill.io

Polyfill.io is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browse...

Polyfill.io Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 08/17/2025

Polyfill.io traffic estimate is about 1,837 unique visitors and 3,674 pageviews per day. The approximated value of polyfill.io is 65,700 USD. Every unique visitor makes about 2 pageviews on average.

Alexa Traffic Rank estimates that polyfill.io is ranked number 127,459 in the world, while most of its traffic comes from United States, where it occupies as high as 121,486 place.

Polyfill.io is registered under .IO top-level domain. Check other websites in .IO zone.

During the last check (November 24, 2019) polyfill.io has an expired SSL certificate issued by GlobalSign nv-sa (expired on April 23, 2020), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by GlobalSign nv-sa.

In accordance with Google Safe Browsing, Google Safe Search and Symantec polyfill.io is pretty a safe domain.

Relying on Google Mobile-Friendly test polyfill.io is well optimized for mobile and tablet devices.

Polyfill.io General Information

Polyfill.io Audience Geography

Where are website visitors coming from?

Country Visitors
United States United States US24.4%
India India IN10.1%
Iran Iran IR4.1%
Viet Nam Viet Nam VN3.3%
Other58.1%

Polyfill.io Traffic Distribution

Where do visitors go on polyfill.io?

SubdomainPageviews
polyfill.io63.86%
cdn.polyfill.io36.14%

Polyfill.io Popularity

How popular is polyfill.io?

PeriodGlobal RankGlobal Rank Delta
past 3 months185153-39296
past month1990593984
past week137608-76399
yesterday387970-198568

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Polyfill.io Safety Information

Rankchart Summary

Safe

Updated: 08/17/2025

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 04/03/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 09/21/2019

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 09/29/2024

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 03/03/2021

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McAfee assesses polyfill.io for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze polyfill.io for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Not Checked

Updated: 08/17/2025

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The WOT calculates reputation of the polyfill.io. This reputation system receives ratings from users and information from third-party sources, assesses the polyfill.io for safety features and confirms, whether polyfill.io is suitable for children.

Polyfill.io SSL Information

Information about SSL/TLS certificates

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Domainf3.shared.global.fastly.net
Issuer OrganizationGlobalSign nv-sa
IssuerGlobalSign CloudSSL CA - SHA256 - G3
AlgorithmRSA-SHA256
Valid form05/29/2019
Expiration04/23/2020
SignedCertificate is not self signed
Additional Domainsf3.shared.global.fastly.net
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eloan.co.jp
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polyfill.io
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Polyfill.io Server Information

Polyfill.io Server Location

Where website hosting server is located?

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Polyfill.io ASN Information

Information about IP address owner

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ASN ID: 139057

ASN Title: Baishan Cloud

Updated: 03/03/2024

Polyfill.io Domain Name Information

Polyfill.io DNS Information

Domain name service records

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HostA RecordTTL

Polyfill.io Whois Information

Information about registered users or assignees of an Internet resource

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Polyfill.io HTML Validation

Polyfill.io W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:
Warnings:

Polyfill.io Desktop Performance

How Well Polyfill.io Performs On Desktops?

Website desktop performance and usability tips

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Speed

86%

86%


Updated: 05/29/2018

Polyfill.io Mobile Performance

How Optimized Is Polyfill.io for Mobile Devices?

Tips on speeding up mobile site performance

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Usability

99%

99%


Updated: 05/29/2018

Polyfill.io Nearest Competitors

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