Security Analysis Results

readwise.io

Comprehensive domain security and infrastructure analysis

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website screenshot of https://readwise.io

No Security Risks Detected

This domain appears to be safe and secure

100%
Score

Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.

Scan Information

Last checked:August 1, 2025 03:14:28
Scan Complete

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Page Information

Target URL
https://readwise.io
Page Title
Readwise
readwise.io faviconSite Favicon
Status
Active

Host Information

Domain
readwise.io
Server
cloudflare
Country
United States
IP Address
216.24.57.1
ASN Information
397273
RENDER

Technologies

Python logo
Python
Programming languages
Apple Sign-in logo
Apple Sign-in
Authentication
Django logo
Django
Web frameworks
Amazon Web Services logo
Amazon Web Services
PaaS
jQuery logo
jQuery
JavaScript libraries
Google Tag Manager logo
Google Tag Manager
Tag managers
+5 more technologies detected

SSL Certificate

HTTPS Enabled
Secure
Certificate Issuer
N/A
Valid From
2025-07-31 03:14:33
Valid Until
2026-08-01 03:14:33
Subject Name
readwise.io

Performance Statistics

74
Total Requests
16
Domains
16
IP Addresses
6.65 MB
Transfer Size
Content Size7.39 MB

HTTP Headers

CF-RAY
96822a813d869790-PDX
Connection
keep-alive
Content-Encoding
br
Content-Type
text/html; charset=utf-8
Date
Fri, 01 Aug 2025 03:14:34 GMT
Server
cloudflare
Transfer-Encoding
chunked
alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
referrer-policy
same-origin
rndr-id
8f9afba0-de92-45e0
vary
Authorization, Cookie, Origin Accept-Encoding
version
None
x-content-type-options
nosniff
x-frame-options
DENY
x-render-origin-server
gunicorn
16 headers detected

Technology Stack Analysis

Python

Python

Programming languages

Python is an interpreted and general-purpose programming language.

Apple Sign-in

Apple Sign-in

Authentication

Apple Sign-in is based on OAuth 2.0 and OpenID Connect, and provides a privacy-friendly way for users to sign in to websites and apps.

Django

Django

Web frameworks

Django is a Python-based free and open-source web application framework.

Amazon Web Services

Amazon Web Services

PaaS

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

jQuery

jQuery

JavaScript libraries

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

Google Tag Manager

Google Tag Manager

Tag managers

Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.

Google Hosted Libraries

Google Hosted Libraries

CDN

Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.

Google Analytics

Google Analytics

Analytics

Google Analytics is a free web analytics service that tracks and reports website traffic.

Cloudflare

Cloudflare

CDN

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Amazon S3

Amazon S3

CDN

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

HTTP/3

HTTP/3

Miscellaneous

HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.

Website Cookies 10

_gid

.readwise.io

Value
GA1.2.1030246100.1754018076
Expires:8/2/2025

_ga

.readwise.io

Value
GA1.2.1668746896.1754018076
Expires:9/5/2026

_ga_RN8V1970JS

.readwise.io

Value
GS2.1.s1754018075$o1$g0$t1754018075$j60$l0$h1126839424
Expires:9/5/2026

_gcl_au

.readwise.io

Value
1.1.2021693105.1754018076
Expires:10/30/2025

landingReferrerUrl

readwise.io

Value
Expires:Session

latestLandingUrl

readwise.io

Value
https://readwise.io/
Expires:Session

_gat_UA-109132095-1

.readwise.io

Value
1
Expires:8/1/2025

initialLandingUrl

readwise.io

Value
https://readwise.io/
Expires:Session

landingId

readwise.io

Value
24d19de8-1fa5-4999-985a-2a383a9b5d86
Expires:Session

csrftoken

readwise.io

Secure Lax
Value
[csrftoken redacted]
Expires:7/31/2026

External Links 33

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/Nneuman/status/919923459223822336

Untitled Link

twitter.com

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Target URL
https://twitter.com/dianakimball/status/912673027103453185

Untitled Link

twitter.com

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Target URL
https://twitter.com/robram/status/999645760378548224

Untitled Link

twitter.com

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Target URL
https://twitter.com/calebhicks/status/1148057578779234305

Untitled Link

twitter.com

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Target URL
https://twitter.com/schlaf/status/1257648420552159232?ref_src=twsrc%5Etfw

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/ThisIsFlorianK/status/1253654430454616064

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/mckaywrigley/status/1237053141889122304

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/gauravvohra1/status/1237259082613944321

Untitled Link

twitter.com

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Target URL
https://twitter.com/iammerrick/status/1297648538185117698

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/sidharthajha/status/1221477404327235584

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/achimrothe/status/1139994239926984706

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/wolfejosh/status/1314214725618606080

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/mattalder/status/1304491526416994304

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/MarkMulvey/status/1214245579922051072

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/_brandswell/status/1172185956872380417

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/jeremydaggett/status/913804355593220096

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/juvoni/status/1295064411397382152

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/roxinekee_/status/1293188239868588034

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/zackkanter/status/1271847092663865345

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/a_rahimus/status/1254061928860827650

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/davegerhardt/status/1223694425332899841

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/willhoekenga/status/913014212670230529

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/PDffy/status/1099765859499814912

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/kipbot/status/912653040607514625

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/siddxxvii/status/1333889691129683968

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/mariepoulin/status/1321067907099496448

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/austin_rief/status/1264922721391202304

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/jasoncrawford/status/1333875477212131328

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/rroudt/status/1333760773491929091

Spaced Repetition

www.theguardian.com

Analyze
Target URL
https://www.theguardian.com/education/2016/jan/23/spaced-repetition-a-hack-to-make-your-brain-store-information

Untitled Link

twitter.com

Analyze
Target URL
https://twitter.com/readwise

Untitled Link

readwise.app.link

Analyze
Target URL
https://readwise.app.link/m88AXbvcygb

Untitled Link

readwise.app.link

Analyze
Target URL
https://readwise.app.link/E0AsXt7lIgb

Requested Domains 16

ajax.googleapis.com

Unknown Type
No category information available

analytics.google.com

Unknown Type
No category information available

appleid.cdn-apple.com

Unknown Type
No category information available

cdn.jsdelivr.net

Unknown Type
No category information available

cdn.rollbar.com

Unknown Type
No category information available

cdnjs.cloudflare.com

Unknown Type
No category information available

fonts.googleapis.com

Unknown Type
No category information available

fonts.gstatic.com

Unknown Type
No category information available

js-agent.newrelic.com

Unknown Type
No category information available

readwise-assets.s3.amazonaws.com

Unknown Type
No category information available

readwise.io

Apex domain
Categories
EducationEducationTechnologyTechnology

stats.g.doubleclick.net

Unknown Type
No category information available

use.fontawesome.com

Unknown Type
No category information available

www.google-analytics.com

Unknown Type
No category information available

www.google.com

Unknown Type
No category information available

www.googletagmanager.com

Unknown Type
No category information available
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