r-coder.com
Registered
Page analyze update date:
2026/01/16 21:37:12
Last whois update date:
2026/01/09 10:19:25
Domain Status
Registered
Paid till
13.06.2026
Available from
13.07.2026
×
![Fullscreen website screenshot]()
r-coder.com Website screenshot
SEO Score
80.14%
117
Score achieved
146
Maximum score
Main Information
Title: R CODER 💻 The best way to start learning R PROGRAMMING
Description: Welcome to R CODER 📚 This website provides a wide variety of R PROGRAMMING TUTORIALS and a FREE R COURSE developed by experts
Keywords: unknown
Page Encoding:
utf-8
Body and server charset are different!
Page Filesize: 92 KB
Server Information
IP: 52.57.221.121
Location: Germany,DE,Frankfurt am Main,60313,50.1169,8.6837,Europe/Berlin
Http Server: apache
Meta Tags List
- charset: UTF-8
- name: viewport content: width=device-width, initial-scale=1
- equiv: X-UA-Compatible content: IE=edge,chrome=1
- name: description content: Welcome to R CODER 📚 This website provides a wide variety of R PROGRAMMING TUTORIALS and a FREE R COURSE developed by experts
- property: og:locale content: en
- property: og:locale:alternate content: es
- property: og:title content: R CODER
- property: og:description content: Welcome to R CODER 📚 This website provides a wide variety of R PROGRAMMING TUTORIALS and a FREE R COURSE developed by experts
- property: og:type content: website
- property: og:url content: https://r-coder.com/
- property: og:site_name content: RCODER
- property: article:publisher content: https://www.facebook.com/RCODERweb
- property: og:image content: https://r-coder.com/images/r-coder-featured.png
- property: og:image:width content: 1260
- property: og:image:height content: 628
- name: twitter:card content: summary_large_image
- name: twitter:creator content: @RCODERWeb
- name: twitter:site content: @RCODERWeb
Internal Links
External Links
Whois Information
domain_name: r-coder.com
update_date: 2025-05-14T09:11:11Z
update_time: 1747213871
creation_date: 2020-06-13T18:10:42Z
creation_time: 1592071842
expiration_date: 2026-06-13T18:10:42Z
Whois Raw Data
Domain Name: R-CODER.COM
Registrar: NameCheap, Inc.
Domain Status: client transfer prohibited
Creation Date: 2020-06-13T18:10:42Z
Registry Expiry Date: 2026-06-13T18:10:42Z
Updated Date: 2025-05-14T09:11:11Z
Name Server: CHRIS.NS.CLOUDFLARE.COM
Name Server: MALEAH.NS.CLOUDFLARE.COM
REGISTRAR Contact: NameCheap, Inc.
>>> Last update of RDAP database: 2026-01-09T13:19:25Z
Robots.txt
User-agent: *
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
!
Character Encoding
Page: utf-8, Header:
Character encoding mismatch between HTML and HTTP headers.
✓
Page Size
94818 bytes
Page size acceptable for fast loading.
✓
Resources
39 total
Moderate number of resources. Consider combining files.
✓
Hreflang Tags
2 hreflang tags
Hreflang tags found for multilingual SEO.
✓
Robots.txt
Exists
Robots.txt file found.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
!
Compression
br
Enable gzip or zstd compression to reduce file sizes.
✓
Caching
private, max-age=0, must-revalidate, no-cache, no-store
Cache-control headers properly set.
✓
Page Speed
1.32 ms
Excellent loading speed.
On-Page SEO
✓
Title
R CODER 💻 The best way to start learning R PROGRAMMING
Good title length (30-60 characters).
✓
Meta Description
Welcome to R CODER 📚 This website provides a wide variety of R PROGRAMMING TUTORIALS and a FREE R COURSE developed by experts Lenght:125
Good meta description length (100-160 characters).
✓
H1 Heading
1 found - "R CODER"
Good - single H1 heading found.
✓
Word Count
705
Good content length (500-2000 words recommended).
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
✓
Duplicate Meta
[]
No duplicate meta tags found.
✓
Keywords
Meta keywords are optional (not used by major search engines).
Content and UX
✓
Language
en
Language attribute properly set.
!
Images
7 total, 1 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width, initial-scale=1
Viewport meta tag properly set for mobile devices.
✓
Open Graph
All OG tags present.
All essential OpenGraph tags present.
✓
Structured Data
1 JSON-LD scripts
Structured data (JSON-LD) found.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 7 | /sqrt-r/ |