Rplumber.io - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
52% 
Page structure
53% 
Link structure
85% 
Server
77% 
External factors
100% 
SEO Score
Response time
0.89 s
File size
19.50 kB
Words
453
Media files
7
Number of links
32 internal / 32 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
An API Generator for R • plumber
The length of the page title is perfect. (300 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Gives the ability to automatically generate and serve an HTTP API from R functions using the annotations in the R documentation around your functions.
The length of the meta description is perfect. (937 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
descriptionGives the ability to automatically generate and serve an HTTP API from R functions using the annotations in the R documentation around your functions.
langen
og:titleAn API Generator for R
og:descriptionGives the ability to automatically generate and serve an HTTP API from R functions using the annotations in the R documentation around your functions.
og:imagehttps://www.rplumber.io/logo.svg
Content-Typetext/html; charset=UTF-8
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
There are only 453 words on this page. Good pages should have about 800 words of useful content.
29.1% of the text are stop words.
The page contains a listing, which indicates a good text layout.
8 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 14.93 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
Multiple viewport tags are given. There should only be one.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 9 tags for this page.
Image SEO
(Somewhat important)
3 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
https://www.rplumber.io/logo.svgNo alt attribute provided
...thumbnails/plumber-cheatsheet-thumbs.pngNo alt attribute provided
...ons/workflows/R-CMD-check.yaml/badge.svgR build status
...r-pkg.org/badges/version/plumberNo alt attribute provided
...pkg.org/badges/plumber?color=brightgreenCRAN RStudio mirror downloads
...udio/plumber/branch/main/graph/badge.svgcodecov
...yle=social&logo=rstudio&logoColor=75AADBRStudio community

Page structure

H1 heading
(Critically important)
plumber
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (7 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 plumber
H2 Installation
H2 Cheat Sheet
H2 Hosting
H2 Related Projects
H2 Links
H2 License
H2 Community
H2 Citation
H2 Developers
H2 Dev status
H6 Releases
Anchor text is an URL
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (32) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.rplumber.io/Anchor Skip to content
/index.htmlplumber
/reference/index.htmlReference
/articles/introduction.htmlIntroduction
/articles/quickstart.htmlQuickstart
/articles/routing-and-input.htmlRouting & Input
/articles/rendering-output.htmlRendering Output
/articles/execution-model.htmlRuntime
/articles/security.htmlSecurity
/articles/hosting.htmlHosting
/articles/programmatic-usage.htmlProgrammatic Usage
/articles/annotations.htmlAnnotations reference
/articles/tips-and-tricks.htmlTips & Tricks
/articles/migration.htmlMigration Guide
https://blog.rstudio.com/2021/...External Subdomain Version 1.1.0
/news/index.htmlChangelog
https://github.com/rstudio/plu...External No Text
https://www.rplumber.io/Anchor No Text
https://rdrr.io/r/base/list.htmlExternal list
https://rdrr.io/r/base/paste.htmlExternal paste0
https://rdrr.io/r/stats/Normal...External rnorm
https://rdrr.io/r/graphics/his...External hist
https://rdrr.io/r/base/numeric...External as.numeric
https://rdrr.io/r/base/numeric...External Text duplicate as.numeric
https://rdrr.io/r/base/library...External library
https://www.rplumber.io/Subdomain Text duplicate plumber
/reference/pr.htmlpr
/reference/pipe.html%>%
/reference/pr_run.htmlpr_run
https://www.rplumber.io/Anchor No Text
https://rdrr.io/r/utils/instal...External install.packages
https://rdrr.io/r/base/library...External Text duplicate library
https://www.rplumber.io/Subdomain Text duplicate plumber
https://www.rplumber.io/Anchor No Text
https://github.com/rstudio/che...External No Text
https://www.rplumber.io/Anchor No Text
https://www.digitalocean.com/External Subdomain DigitalOcean
https://github.com/meztez/plum...External plumberDeploy
https://posit.co/products/ente...External Posit Connect
/articles/hosting.htmlSubdomain Anchor URL anchor text
https://www.rplumber.io/articles/hosting.html#rstudio-connect-1
/articles/hosting.htmlSubdomain Anchor URL anchor text
https://www.rplumber.io/articles/hosting.html#pm2-1
/articles/hosting.htmlSubdomain Anchor URL anchor text
https://www.rplumber.io/articles/hosting.html#docker
https://www.rplumber.io/Anchor No Text
https://www.opencpu.org/External Subdomain OpenCPU
http://bart6114.github.io/jug/...External Subdomain jug
https://cloud.r-project.org/pa...External Subdomain View on CRAN
https://github.com/rstudio/plu...External Browse source code
https://github.com/rstudio/plu...External Report a bug
https://opensource.org/license...External MIT
/LICENSE-text.htmlLICENSE
/CONTRIBUTING.htmlContributing guide
/authors.htmlCiting plumber
http://schloerke.com/External Barret Schloerke
https://orcid.org/0000-0001-99...External No Text
https://trestletech.com/External Jeff Allen
/authors.htmlMore about authors...
https://github.com/rstudio/plu...External IMG-ALT R build status
https://www.r-pkg.org/pkg/plumberExternal Subdomain No Text
https://www.r-pkg.org/pkg/plumberExternal Subdomain IMG-ALT CRAN RStudio mirror downloads
https://app.codecov.io/gh/rstu...External Subdomain IMG-ALT codecov
https://forum.posit.co/tag/plu...External Subdomain IMG-ALT RStudio community
http://schloerke.com/External Text duplicate Barret Schloerke
https://trestletech.com/External Text duplicate Jeff Allen
https://pkgdown.r-lib.org/External Subdomain pkgdown

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.rplumber.io/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.89 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (20 kB).

HTTP Response Header

NameValue
accept-rangesbytes
age105044
cache-controlpublic,max-age=0,must-revalidate
cache-status"Netlify Edge"; hit
content-encodinggzip
content-typetext/html; charset=UTF-8
dateMon, 29 Jul 2024 09:40:07 GMT
etag"5a59751c40f52cee3c0e9e4c939259dd-ssl-df"
serverNetlify
strict-transport-securitymax-age=31536000
varyAccept-Encoding
x-nf-request-id01J3YXS26KAFMSVBVKJ3JY2GR2
content-length5813
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 308 referring domains.
This page has 4,909 backlinks.
This page has backlinks from 232 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

www.rplumber.io
An API Generator for R • plumber
Gives the ability to automatically generate and serve an HTTP API from R functions using the annotations in the R documentation around your functions.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
plumber75%Check
API58%Check
function46%Check
using46%Check
functions46%Check
Annotations46%Check
documentation46%Check
Hosting38%Check
install38%Check
rstudio38%Check
Show more keywords and terms

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