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polyfill.io Open in urlscan Pro
2a04:4e42:600::621  Public Scan

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Submitted URL: https://polyfill.io/
Effective URL: https://polyfill.io/v3/
Submission: On May 14 via api from CH
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 2 countries across 2 domains to perform 12 HTTP transactions. The main IP is 2a04:4e42:600::621, located in United States and belongs to FASTLY, US. The main domain is polyfill.io.
TLS certificate: Issued by GlobalSign CloudSSL CA - SHA256 - G3 on May 11th 2021. Valid for: 10 months.
This is the only time polyfill.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 7 2a04:4e42:600... 54113 (FASTLY)
5 151.101.114.109 54113 (FASTLY)
1 2a04:4e42:1b:... 54113 (FASTLY)
12 3
Apex Domain
Subdomains		 Transfer
8 polyfill.io
polyfill.io
cdn.polyfill.io
214 KB
5 ft.com
www.ft.com
160 KB
12 2
Domain Requested by
7 polyfill.io 1 redirects polyfill.io
5 www.ft.com polyfill.io
1 cdn.polyfill.io polyfill.io
12 3

This site contains links to these domains. Also see Links.

Domain
github.com
Subject Issuer Validity Valid
f3.shared.global.fastly.net
GlobalSign CloudSSL CA - SHA256 - G3		 2021-05-11 -
2022-03-26		 10 months crt.sh
*.fdibenchmark.com
GlobalSign Atlas R3 DV TLS CA 2020		 2021-05-10 -
2022-06-11		 a year crt.sh

This page contains 1 frames:

Primary Page: https://polyfill.io/v3/
Frame ID: A76BF94B083B1A352189E09B2E489FB7
Requests: 12 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page URL History Show full URLs

  1. https://polyfill.io/ HTTP 301
    https://polyfill.io/v3/ Page URL

Page Statistics

12
Requests

100 %
HTTPS

67 %
IPv6

2
Domains

3
Subdomains

3
IPs

2
Countries

374 kB
Transfer

546 kB
Size

0
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. https://polyfill.io/ HTTP 301
    https://polyfill.io/v3/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

12 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
polyfill.io/v3/
Redirect Chain
  • https://polyfill.io/
  • https://polyfill.io/v3/
11 KB
3 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://polyfill.io/v3/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:600::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
90a52909d9f72637e587c7642565c1e5d86b38c1869c486cbf905362629817e4
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

:method
GET
:authority
polyfill.io
:scheme
https
:path
/v3/
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site
none
sec-fetch-mode
navigate
sec-fetch-user
?1
sec-fetch-dest
document
accept-encoding
gzip, deflate, br
accept-language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
last-modified
Mon, 22 Mar 2021 13:35:25 GMT
etag
W/"2cd9-1785a25b948"
content-type
text/html; charset=UTF-8
x-ua-compatible
ie=edge
link
<https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/MetricWeb-Semibold.woff>; rel=preload; as=font; crossorigin=anonymous <https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/MetricWeb-Regular.woff>; rel=preload; as=font; crossorigin=anonymous
content-encoding
gzip
server-timing
HIT, fastly;desc="Edge time";dur=0 HIT, fastly;desc="Edge time";dur=0
x-xss-protection
1; mode=block
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubdomains; preload
referrer-policy
origin-when-cross-origin
timing-allow-origin
*
accept-ranges
bytes
date
Fri, 14 May 2021 05:41:30 GMT
age
1913217
vary
Accept-Encoding
content-length
2547

Redirect headers

retry-after
0
location
/v3/
accept-ranges
bytes
date
Fri, 14 May 2021 05:41:30 GMT
server-timing
HIT-SYNTH, fastly;desc="Edge time";dur=0
content-length
0
MetricWeb-Semibold.woff
www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/ 		50 KB
51 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/MetricWeb-Semibold.woff
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.114.109 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
8aaace27bb0d6f4f3d61d12596fed0038a6ca18250e98f71bde9be4eadcf5ab5
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains; preload

Request headers

Origin
https://polyfill.io
Referer
https://polyfill.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Fri, 14 May 2021 05:41:30 GMT
vary
FT-Site, Accept-Encoding,Origin
last-modified
Thu, 13 May 2021 17:09:19 GMT
age
11263
accept-ranges
bytes
strict-transport-security
max-age=63072000; includeSubDomains; preload
content-type
font/woff
access-control-allow-origin
https://polyfill.io
cache-control
public, max-age=2558131, stale-while-revalidate=3162931, stale-if-error=3162931, s-maxage=43200
server-timing
total; dur=17.738989999999998; desc="Total Response Time"
ft-suppress-friendly-error
true
content-length
51558
MetricWeb-Regular.woff
www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/ 		49 KB
49 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.3.2/MetricWeb-Regular.woff
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.114.109 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
6696d1217c24fb848514b39dd908a3f645a5122719cf2bf7640ef9cd5da5bd5d
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains; preload

Request headers

Origin
https://polyfill.io
Referer
https://polyfill.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Fri, 14 May 2021 05:41:30 GMT
vary
FT-Site, Accept-Encoding,Origin
last-modified
Thu, 13 May 2021 17:09:19 GMT
age
5586
accept-ranges
bytes
strict-transport-security
max-age=63072000; includeSubDomains; preload
content-type
font/woff
access-control-allow-origin
https://polyfill.io
cache-control
public, max-age=2552454, stale-while-revalidate=3157254, stale-if-error=3157254, s-maxage=43200
server-timing
total; dur=31.652178; desc="Total Response Time"
ft-suppress-friendly-error
true
content-length
50290
index.css
polyfill.io/css/ 		98 KB
13 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://polyfill.io/css/index.css
Requested by
Host: polyfill.io
URL: https://polyfill.io/v3/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:600::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
97c509a8b8cac269c531e80fbcd8d5e2c457551ce09f370dcddbb5d6f59bae02
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff

Request headers

:path
/css/index.css
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
text/css,*/*;q=0.1
cache-control
no-cache
sec-fetch-dest
style
:authority
polyfill.io
referer
https://polyfill.io/v3/
:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
https://polyfill.io/v3/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
content-encoding
gzip
referrer-policy
origin-when-cross-origin
last-modified
Mon, 22 Mar 2021 13:35:32 GMT
age
1904272
etag
W/"189db-1785a25d4a0"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
date
Fri, 14 May 2021 05:41:30 GMT
server-timing
HIT-CLUSTER, fastly;desc="Edge time";dur=1 HIT-CLUSTER, fastly;desc="Edge time";dur=1
accept-ranges
bytes
timing-allow-origin
*
content-length
12739
x-content-type-options
nosniff
polyfill.min.js
cdn.polyfill.io/v3/ 		16 KB
4 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn.polyfill.io/v3/polyfill.min.js?features=Array.from,Array.isArray,Array.prototype.entries,Array.prototype.filter,Array.prototype.forEach,Array.prototype.includes,Array.prototype.indexOf,Array.prototype.keys,Array.prototype.map,Array.prototype.reduce,ArrayBuffer,console,CustomEvent,document,Element,Function.prototype.bind,JSON,Map,Object.assign,Object.defineProperty,Object.entries,Object.getOwnPropertyDescriptor,Object.keys,Set,String.prototype.includes,String.prototype.trim,Symbol,Symbol.iterator,URLSearchParams,WeakMap,WeakSet
Requested by
Host: polyfill.io
URL: https://polyfill.io/v3/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:1b::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
e6d30ac453d4a6814c1dc805b634d9d715547665ffcf2ee982ecde4677970b20
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://polyfill.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
content-encoding
br
x-content-type-options
nosniff
content-type
text/javascript; charset=utf-8
age
1903061
detected-user-agent
Chrome/89.0.4389
server-timing
HIT-CLUSTER, fastly;desc="Edge time";dur=1, HIT-CLUSTER, fastly;desc="Edge time";dur=1
content-length
3788
referrer-policy
origin-when-cross-origin
last-modified
Wed, 21 Apr 2021 05:20:21 GMT
date
Fri, 14 May 2021 05:41:30 GMT
vary
User-Agent, Accept-Encoding
access-control-allow-methods
GET,HEAD,OPTIONS
normalized-user-agent
chrome/89.0.0
access-control-allow-origin
*
cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
accept-ranges
bytes
timing-allow-origin
*
index.min.js
polyfill.io/js/ 		46 KB
13 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://polyfill.io/js/index.min.js
Requested by
Host: polyfill.io
URL: https://polyfill.io/v3/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:600::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
a6e1b5a5a963aeb85516e894210aa12a827b0970797d7e64a34b05c88e0344c2
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff

Request headers

:path
/js/index.min.js
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
*/*
cache-control
no-cache
sec-fetch-dest
script
:authority
polyfill.io
referer
https://polyfill.io/v3/
:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
https://polyfill.io/v3/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
content-encoding
gzip
referrer-policy
origin-when-cross-origin
last-modified
Mon, 22 Mar 2021 13:35:32 GMT
age
1915097
etag
W/"b933-1785a25d4a0"
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
date
Fri, 14 May 2021 05:41:30 GMT
server-timing
HIT-CLUSTER, fastly;desc="Edge time";dur=1 HIT-CLUSTER, fastly;desc="Edge time";dur=0
accept-ranges
bytes
timing-allow-origin
*
content-length
12727
x-content-type-options
nosniff
logo.svg
polyfill.io/img/ 		283 B
378 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://polyfill.io/img/logo.svg
Requested by
Host: polyfill.io
URL: https://polyfill.io/css/index.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:600::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
d02f73ecd9e7ea6d737f0cbf9aca23855dc5dc7b78443494f1e61c29c29914f1
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff

Request headers

:path
/img/logo.svg
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
cache-control
no-cache
sec-fetch-dest
image
:authority
polyfill.io
referer
https://polyfill.io/css/index.css
:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
https://polyfill.io/css/index.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
referrer-policy
origin-when-cross-origin
last-modified
Mon, 22 Mar 2021 13:30:49 GMT
age
99963
etag
W/"11b-1785a218328"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
date
Fri, 14 May 2021 05:41:30 GMT
server-timing
HIT-CLUSTER, fastly;desc="Edge time";dur=1 HIT-CLUSTER, fastly;desc="Edge time";dur=1
accept-ranges
bytes
timing-allow-origin
*
content-length
283
x-content-type-options
nosniff
home-page-hero.jpg
polyfill.io/img/ 		168 KB
168 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://polyfill.io/img/home-page-hero.jpg
Requested by
Host: polyfill.io
URL: https://polyfill.io/css/index.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2a04:4e42:600::621 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
08f193a191fd6d4319b975a30806d959a08b654a9bc6ab719fc13163d60160d6
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff

Request headers

:path
/img/home-page-hero.jpg
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
cache-control
no-cache
sec-fetch-dest
image
:authority
polyfill.io
referer
https://polyfill.io/css/index.css
:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
https://polyfill.io/css/index.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
referrer-policy
origin-when-cross-origin
last-modified
Mon, 22 Mar 2021 13:30:49 GMT
age
1940778
etag
W/"2a054-1785a218328"
content-type
image/jpeg
cache-control
public, s-maxage=31536000, max-age=604800, stale-while-revalidate=604800, stale-if-error=604800
date
Fri, 14 May 2021 05:41:30 GMT
server-timing
HIT-CLUSTER, fastly;desc="Edge time";dur=1 HIT-CLUSTER, fastly;desc="Edge time";dur=1
accept-ranges
bytes
timing-allow-origin
*
content-length
172116
x-content-type-options
nosniff
MetricWeb-Semibold.woff2
www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.5.0/ 		30 KB
31 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.5.0/MetricWeb-Semibold.woff2
Requested by
Host: polyfill.io
URL: https://polyfill.io/css/index.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.114.109 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
2d29f56691db39f980cbe5d600355b9fe1173563106aed67cf6bd3368af8f3af
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains; preload

Request headers

Origin
https://polyfill.io
Referer
https://polyfill.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Fri, 14 May 2021 05:41:30 GMT
vary
FT-Site, Accept-Encoding,Origin
last-modified
Thu, 13 May 2021 14:04:32 GMT
age
10881
accept-ranges
bytes
strict-transport-security
max-age=63072000; includeSubDomains; preload
content-type
font/woff2
access-control-allow-origin
https://polyfill.io
cache-control
public, max-age=2546662, stale-while-revalidate=3151462, stale-if-error=3151462, s-maxage=43200
server-timing
total; dur=35.658712; desc="Total Response Time"
ft-suppress-friendly-error
true
content-length
31148
MetricWeb-Regular.woff2
www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.5.0/ 		28 KB
29 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://www.ft.com/__origami/service/build/v2/files/o-fonts-assets@1.5.0/MetricWeb-Regular.woff2
Requested by
Host: polyfill.io
URL: https://polyfill.io/css/index.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.114.109 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
8ef66d8994585d8486b906d00462cbc9c0fd80482a381e3fdb237bac1bf18b59
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains; preload

Request headers

Origin
https://polyfill.io
Referer
https://polyfill.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Fri, 14 May 2021 05:41:30 GMT
vary
FT-Site, Accept-Encoding,Origin
last-modified
Thu, 13 May 2021 14:04:32 GMT
age
12694
accept-ranges
bytes
strict-transport-security
max-age=63072000; includeSubDomains; preload
content-type
font/woff2
access-control-allow-origin
https://polyfill.io
cache-control
public, max-age=2548475, stale-while-revalidate=3153275, stale-if-error=3153275, s-maxage=43200
server-timing
total; dur=27.159222; desc="Total Response Time"
ft-suppress-friendly-error
true
content-length
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www.ft.com/__origami/service/image/v2/images/raw/ 		805 B
841 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.ft.com/__origami/service/image/v2/images/raw/ftsocial-v2%3Agithub?source=origami-polyfill-service&tint=000000&format=svg
Requested by
Host: polyfill.io
URL: https://polyfill.io/css/index.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.114.109 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
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Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains; preload

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Referer
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User-Agent
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content-encoding
gzip
etag
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ft-image-format
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vary
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ft-suppress-friendly-error
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timing-allow-origin
*
index.min.js
polyfill.io/js/ 		46 KB
13 KB 		Other
General
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Full URL
https://polyfill.io/js/index.min.js
Requested by
Host: polyfill.io
URL: https://polyfill.io/v3/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Reverse DNS
Software
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Security Headers
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X-Content-Type-Options nosniff

Request headers

:path
/js/index.min.js
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
*/*
cache-control
no-cache
sec-fetch-dest
script
:authority
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:scheme
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sec-fetch-site
same-origin
:method
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Referer
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User-Agent
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Response headers

strict-transport-security
max-age=31536000; includeSubdomains; preload
content-encoding
gzip
referrer-policy
origin-when-cross-origin
last-modified
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age
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etag
W/"b933-1785a25d4a0"
vary
Accept-Encoding
content-type
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cache-control
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server-timing
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accept-ranges
bytes
timing-allow-origin
*
content-length
12727
x-content-type-options
nosniff

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11 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| onbeforexrselect object| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker boolean| originAgentCluster object| trustedTypes boolean| crossOriginIsolated

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Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Strict-Transport-Security max-age=31536000; includeSubdomains; preload
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block