polyfill-fastly.io - Frequently Asked Questions

Question 1

What is this domain used for?

Accepted Answer

This domain is analyzed as part of cside's domain directory to identify third-party scripts and their purposes. The summary provides information about what services, tools, or scripts this domain hosts, helping website owners understand which third-party services are being loaded on their sites.

Question 2

How is the risk score calculated?

Accepted Answer

The risk score is calculated based on multiple security factors including SSL certificate validity, DNSSEC status, domain registration details, and historical security data. A higher score indicates lower risk, while a lower score suggests potential security concerns that should be investigated.

Question 3

What does the SSL certificate information tell me about this domain?

Accepted Answer

The SSL certificate information shows whether the domain uses HTTPS encryption, when the certificate was issued, when it expires, and who issued it. This helps verify the domain's security posture and identify potential certificate-related vulnerabilities that could affect your website's security.

Question 4

Why is domain information important for client-side security?

Accepted Answer

Third-party script domains can be compromised or used maliciously. By monitoring domain information like registration details, SSL certificates, and DNS records, you can identify suspicious changes, expired certificates, or domains that may pose security risks to your website and users.

Question 5

How often is this domain scanned and updated?

Accepted Answer

Domain information is regularly scanned and updated to provide the most current security intelligence. The last scanned timestamp shows when the most recent analysis was performed, ensuring you have up-to-date information about the domain's security status.

Question 6

What should I do if I see a high-risk domain on my website?

Accepted Answer

If you identify a high-risk domain loading scripts on your website, you should investigate why it's being used, verify its legitimacy, and consider removing or replacing it if it's not essential. Use cside's platform to monitor and block suspicious third-party scripts to protect your users from potential security threats.

Hostname	Type	TTL	Content
polyfill-fastly.io	A	3379	151.101.65.91
polyfill-fastly.io	A	3379	151.101.129.91
polyfill-fastly.io	A	3379	151.101.1.91
polyfill-fastly.io	A	3379	151.101.193.91
polyfill-fastly.io	SOA	3600	edns1.ultradns.com. hostmaster.fastly.com. 2024022342 3600 600 604800 1800
polyfill-fastly.io	AAAA	506	2a04:4e42::347
polyfill-fastly.io	AAAA	506	2a04:4e42:200::347
polyfill-fastly.io	AAAA	506	2a04:4e42:600::347
polyfill-fastly.io	AAAA	506	2a04:4e42:400::347
polyfill-fastly.io	NS	3600	edns1.ultradns.biz.
polyfill-fastly.io	NS	3600	edns1.ultradns.com.
polyfill-fastly.io	NS	3600	edns1.ultradns.net.
polyfill-fastly.io	NS	3600	edns1.ultradns.org.
polyfill-fastly.io	NS	3600	ns-cloud-e1.googledomains.com.
polyfill-fastly.io	NS	3600	ns-cloud-e2.googledomains.com.
polyfill-fastly.io	NS	3600	ns-cloud-e3.googledomains.com.
polyfill-fastly.io	NS	3600	ns-cloud-e4.googledomains.com.