Alcula.com - SEO Checker

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Overview of the SEO Check
Meta information
87% 
Page quality
64% 
Page structure
100% 
Link structure
75% 
Server
34% 
External factors
100% 
SEO Score
Response time
0.64 s
File size
13.50 kB
Words
480
Media files
2
Number of links
18 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Online Calculators for Math and Statistics
The length of the page title is perfect. (371 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Online advanced calculators for math and statistics. Also features abacuses and units of measure conversion tools.
The length of the meta description is perfect. (707 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)
HTTP-Header Content-Type: iso-8859-1
Meta http-equiv Content-Type: utf-8
The specified character encodings are different.
Doctype
(Nice to have)
The doctype XHTML 1.0 Transitional is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

NameValue
descriptionOnline advanced calculators for math and statistics. Also features abacuses and units of measure conversion tools.
keywordsCalculator,online scientific calculator,statistics,standard deviation,math,mathematics,algebra,calculus,algebra calculators,unit conversion,Virtual,Online,Abacus,Soroban,Suan,Pan,Suanpan,Abaci
robotsindex,follow
langen
fb:page_id389488405183
Content-Typetext/html; charset=UTF-8
PICS-Label(PICS-1.1 "http://www.classify.org/safesurf/" L gen true for "http://www.alcula.com" r (SS~~000 1))
pics-Label(pics-1.1 "http://www.icra.org/pics/vocabularyv03/" l gen true for "http://alcula.com" r (n 0 s 0 v 0 l 0 oa 0 ob 0 oc 0 od 0 oe 0 of 0 og 0 oh 0 c 0) gen true for "http://www.alcula.com" r (n 0 s 0 v 0 l 0 oa 0 ob 0 oc 0 od 0 oe 0 of 0 og 0 oh 0 c 0))

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Page quality

Content
(Critically important)
There are only 480 words on this page. Good pages should have about 800 words of useful content.
37.1% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
9 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 11.37 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 10 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
/images/alculaLogo45.pngAlcula Home
/images/scientificcalculatorsmoke.jpgsnapshot of the scientific calculator

Page structure

H1 heading
(Critically important)
Alcula, Online Calculators
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Alcula, Online Calculators
H2 Simple to advanced calculators for math and statistics, units conversion and more...
H2 More calculators (accessible from the top navigation links)
H2 What else is on Alcula'...
H2 Latest news about Alcula's online calculators
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are no external links on this page.

Found links on this page

LinkAttributesAnchor text
/calculators/Calculators
http://www.alcula.com/conversion/Conversions
http://www.alcula.com/blog/Blog
http://www.alcula.com/English
http://www.alcula.com/es/Spanish
http://www.alcula.com/it/Italian
http://www.alcula.com/fr/French
/calculators/scientific-calcul...IMG-ALT snapshot of the scientific calculator
/calculators/scientific-calcul...Online Scientific Calculator
/calculators/statistics/linear...Linear Regression Calculator
/calculators/finance/bitcoin-m...Bitcoin Mining Calculator
/calculators/statistics/box-plot/Online Box Plot Generator
/calculators/finance/percentag...Percentages calculator
/percentage.phpHow to calculate percentages with a calculator.
/blog/2010/05/the-new-statisti...Subdomain Standard deviation and more with Alcula's new statistics calculator
/disclaimer.phpNofollow Disclaimer
http://www.alcula.com/sitemap.phpSitemap
http://www.alcula.com/privacy/Nofollow Privacy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "http://www.alcula.com/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.64 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.
This page only loads 3 CSS files. That's ok.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (14 kB).

HTTP Response Header

NameValue
dateSun, 30 Jun 2024 14:48:54 GMT
serverApache
set-cookie15 Characters
transfer-encodingchunked
content-typetext/html; charset=ISO-8859-1
statuscode200
http_versionHTTP/1.1

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 914 referring domains.
This page has 2,967 backlinks.
This page has backlinks from 520 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

User-agent: *
Allow: /
Disallow: /calculators/scientific-calculator/swf1_2/
Disallow: /es/calculadoras/calculadora-cientifica/Wooden.swf
Disallow: /fr/calculatrices/calculatrice-scientifique/Wooden.swf
Disallow: /calculators/scientific-calculator/Wooden.swf
Disallow: /conversions/
Disallow: /simplecalc/
Disallow: /extcalc/
Disallow: /printcalc/
Disallow: /opx/

Similar sites

Search preview

www.alcula.com
Online Calculators for Math and Statistics
Online advanced calculators for math and statistics. Also features abacuses and units of measure conversion tools.

Most important keywords

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

KeywordResultRecheck
Calculator79%Check
Calculators77%Check
Online77%Check
Online Calculators77%Check
statistics calculator68%Check
statistics calculators67%Check
math62%Check
advanced calculators62%Check
statistics61%Check
Online Bitcoin58%Check
Show more keywords and terms

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