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rstudio.org

https://rstudio.org· First analyzed 16 May 2026· Updated 16 May 2026
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rstudio.org
Desktop screenshot of rstudio.org
Mobile screenshot of rstudio.org
Mobile

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Hosting Provider

Linode (Akamai)
linode.com

IP Address

45.33.2.142

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Richardson, United States

ASN

AS63949

Organization

Linode

Server

Nginx

CDN

CloudFront

Nameservers

ns-1456.awsdns-54.org.ns-1950.awsdns-51.co.uk.ns-406.awsdns-50.com.ns-673.awsdns-20.net.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
11.2 s10%
Speed Index
14.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
117 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Drupal
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

9 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Other

1
Optimizely

Web Servers

1
Nginx

SEO Analysis

B78/100
22
6
1
Meta Tags13/15
Content10/12
Headings8/8
Technical22/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
R
rstudio.orgrstudio.org

Posit | Data Science Platform for Enterprise Teams

Posit is the enterprise data science platform trusted by 52 of the Fortune 100. Develop, deploy, and govern R and Python workflows and AI-powered application...

Description truncated.
Title Length50 chars

Recommended: 50-60 chars (~304px / 580px)

Description Length222 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (59/115) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,894 URLs

robots.txt

41 rules

Local SEO

Local Search Readiness

27/100
Needs Work
7 10

Sponsored

AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
6/25
Citation
7/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:6%
Words:5,145
Token eff.:Excessive

Structured Data

2 JSON-LD
Organization×1.1WebSite
sameAs entity links

Citation Readiness

Opening Summary184w
Descriptive Headings
Canonical URL
Open Graph1/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A
82/100
12
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
70/100
B
119 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
136 mg
vs
Returning (cached)
68 mg
Annual (10K/mo)
14.3 kg
Emission Segments
Data Center
6 mg
Network
35 mg
Device
78 mg
Resource Breakdown
JavaScript
102.1 KB
Images
756.0 KB
CSS
56.1 KB
HTML
62.1 KB
Other
204.1 KB
Green Hosting Verified
Linode (Akamai)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

144d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

24.03.2026

Valid Until

07.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

posit.cowww.posit.co

SHA-256 Fingerprint

03:19:84:67:F0:7F:CA:D1:24:84:F4:19:04:AF:EC:C3:B3:79:0B:B7...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
age
45
alt-svc
h3=":443"; ma=86400
cache-control
🟡 60s(max-age=60, must-revalidate, public, s-maxage=300, stale-if-...)
content-encoding
📦 Gzip(gzip)
content-language
en
Good Warning Issue

Email Infrastructure

Google Workspace

Score

45

SPF
DKIM
DMARC

MX Records (5)

aspmx3.googlemail.com
aspmx.l.google.com
alt2.aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

rstudio.org

Domain Age
16y 7m

Created

01.10.2009

Expires

01.10.2026

Last Updated

05.05.2026

Registrar

Amazon Registrar, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
76/100
Mobile Friendly24 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial
78/100
Readability
/30
25/30

18px · LH 1.50

Hierarchy
/20
17/20

3.89x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
20/25

2 fonts · 1 req

Heading Font

Open Sans

Sans70px

Body Font

Open Sans

Sans18px

Contrast Ratio

1:1

10 issues

Reading Comfort

~42 CPL

Narrow lines
70px
h1
70px
h2
90px
h3
18px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.9x larger than body text.

GGoogle FontsFluid TypeFlesch 28

Color Palette

12 unique colors
13.41:1 AAA Light
#ffffff
Background· 20%
#2d2f33
Other· 7%
#1a202a
Primary· 14.5%
#25495c
Secondary· 13.3%
#817966
Secondary· 8%
#77625b
Secondary· 6.9%
#3c545b
Secondary· 5.1%
#0f319e
Accent· 4.9%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

1
MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

3

Categories

5

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

25 Resources

20
Scripts
5
Styles
9
Async
1
Defer

Top Script Sources

local(5)googletagmanager.com(3)static.addtoany.com(3)consent.cookiebot.com(2)munchkin.marketo.net(2)

Website Identity

Posit

Posit

Organization
844.448.1212
posit.co
16 years old
Location detected: 🇺🇸 United Statesvia ip
Amazon Registrar, Inc.📧 Google Workspaceen

Sponsored

Last analyzed: 16 May 2026 at 21:38

Historical Analysis & Change Tracking