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 Overview
Website Overview of Polyfill.io
Name: polyfill.io
Title: Polyfill.io
Description: Polyfill.io is a website that allows developers to check for and automatically load necessary polyfills for their web applications.
Polyfill.io is a platform that provides polyfills, which are code snippets that mimic the functionality of newer web features on older browsers. It is a valuable tool for web developers to ensure that their applications work seamlessly across different browser versions.
The website has a significant user base, with around 1837 unique users visiting the site daily. This indicates its popularity and usefulness to developers. With 3674 pageviews per day, it shows that visitors engage with the site and explore multiple pages.
Polyfill.io is hosted by FASTLY, a US-based hosting service. This suggests that the website is hosted on robust infrastructure, and users can expect reliable performance.
The website has a top-level domain of .IO, which is often associated with tech-related websites. This domain choice could indicate that the site targets a specific audience, possibly developers or tech-savvy individuals.
Polyfill.io has an SSL certificate issued by GlobalSign nv-sa. This indicates that the website has implemented secure browsing protocols and users' data is encrypted during transmission. This promotes a secure and trustworthy browsing experience.
Considering the nature of the website, it can be assumed that Polyfill.io is family-friendly. Since it offers tools and resources for developers, there is no explicit content or harmful materials that could be inappropriate for users of all ages.
The PageSpeed Insights scores for Polyfill.io indicate that the website's speed is relatively good, with a score of 69. While there is room for improvement, this score suggests that the website loads within a reasonable time frame.
Polyfill.io has a significant number of external backlinks, with 1098. Backlinks are a measure of a website's popularity and authority. This indicates that other websites find Polyfill.io valuable and worth referencing.
The website also has 917 referring domains, which further underscores its credibility and influence within the developer community. Referring domains indicate the number of unique websites that link to Polyfill.io, further cementing its reputation as a trusted resource.
In conclusion, Polyfill.io is a popular and trusted website among developers, providing valuable tools and resources for web application development. Its user-friendly approach, secure browsing experience, and recognition within the developer community make it a valuable asset and resource for developers seeking to enhance website compatibility across various
Polyfill.io Rank Summary
Audience Geography. Where are polyfill.io visitors located?
| Country | Visitors |
|---|---|
 United States US | 24.4% |
| India IN | 10.1% |
| Iran IR | 4.1% |
| Viet Nam VN | 3.3% |
| Other | 58.1% |
| Country | Pageviews |
|---|---|
| United States US | 46.1% |
| India IN | 9.4% |
| Iran IR | 4.3% |
| Viet Nam VN | 2.1% |
| Other | 38.1% |
| Country | Rank |
|---|---|
| Viet Nam VN | 47638 |
| Iran IR | 83068 |
| United States US | 121486 |
| India IN | 149692 |
Where do visitors go on polyfill.io?
| Subdomain | Pageviews |
|---|---|
| polyfill.io | 63.86% |
| cdn.polyfill.io | 36.14% |
| Subdomain | Pageviews per User |
|---|---|
| polyfill.io | 2 |
| cdn.polyfill.io | 1 |
| Subdomain | Reach |
|---|---|
| polyfill.io | 60.49% |
| cdn.polyfill.io | 46.53% |
How popular is polyfill.io?
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 185153 | -39296 |
| past month | 199059 | 3984 |
| past week | 137608 | -76399 |
| yesterday | 387970 | -198568 |
| Days | Pageviews Rank | Pageviews Rank Delta | Pageviews per Million | Pageviews per Million Delta | Pageviews per User | Pageviews per User Delta |
|---|---|---|---|---|---|---|
| 90 | 241641 | -37310 | 19 | 30% | 2 | 0% |
| 30 | 272747 | 19129 | 17 | -7.364% | 1.9 | -11.37% |
| 7 | 186167 | -68812 | 29 | 50% | 2 | -13.08% |
| 1 | 488572 | -106196 | 7 | 500% | 1 | 0% |
| Days | Reach Rank | Reach Rank Delta | Reach per Million | Reach per Million Delta |
|---|---|---|---|---|
| 90 | 175925 | -41540 | 34 | 30% |
| 30 | 185723 | -2130 | 34 | 5% |
| 7 | 132957 | -84256 | 5 | 80% |
| 1 | 351849 | -228516 | 3 | 500% |
Polyfill.io Website Safety
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 ConnectSafe evaluates polyfill.io for any unsafe and insecure content. The results are critical for families with young children.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
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.
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.
| Domain | f3.shared.global.fastly.net |
| Issuer Organization | GlobalSign nv-sa |
| Issuer | GlobalSign CloudSSL CA - SHA256 - G3 |
| Algorithm | RSA-SHA256 |
| Valid form | 05/29/2019 |
| Expiration | 04/23/2020 |
| Signed | Certificate is not self signed |
| Additional Domains |
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Polyfill.io Rank History
Alexa Rank shows how popular polyfill.io is in comparison with other sites. The most popular site has Alexa Rank equals 1. If polyfill.io has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to polyfill.io and pageviews on polyfill.io over the past 3 months.
Polyfill.io Hosting Information
ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., USLast Update: 05/04/2026
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#
ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509
OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#
Polyfill.io Domain Registration and Settings
Domain Name: polyfill.io
Registry Domain ID: bc6cb841659d480ba594f07776cac7c6-DONUTS
Registrar WHOIS Server: www.whois.corporatedomains.com
Registrar URL: http://www.cscglobal.com
Updated Date: 2022-03-12T06:01:18Z
Creation Date: 2013-03-18T19:00:23Z
Registry Expiry Date: 2023-03-18T19:00:23Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: +1.3026365400
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: The Financial Times Limited
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: ENG
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: GB
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns-52.awsdns-06.com
Name Server: ns-1447.awsdns-52.org
Name Server: ns-530.awsdns-02.net
Name Server: ns-1984.awsdns-56.co.uk
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-04-22T23:18:52Z
| Host | A Record | TTL |
|---|
| Host | MX Record | Priority | TTL |
|---|
| Host | NS Record | TTL |
|---|
| Host | TXT Record | TTL |
|---|
Polyfill.io HTML Check
Polyfill.io Desktop Performance
Last tested: 05/29/2018
| Total Resources | 36 |
| Number of Hosts | 11 |
| Static Resources | 25 |
| JavaScript Resources | 8 |
| CSS Resources | 5 |
Polyfill.io Mobile Insights
Last tested: 05/29/2018
| Total Resources | 35 |
| Number of Hosts | 11 |
| Static Resources | 25 |
| JavaScript Resources | 8 |
| CSS Resources | 5 |
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