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SEO Report for

January 12, 2020 3:31 AM
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8 criteria passed
3 criteria to solve


Make your meta description eloquent and appealing, neither too short nor too long.
Make all versions of your website point to the same URL.


• Category
Technology & Computing  >  Language Translation
• Online since
March 18, 2011 (explore Wayback Machine)
• Age
11 years, 1 month, 29 days
• Alexa Rank
#93.137, is in the world's top 100.000 websites!


Representation of an online Form

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SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by COMODO CA Limited has expired on October 14, 2020.
Title Tag
Матричный калькулятор
Length: 41 (recommended: 10 to 70)
Meta Description
Сложение, умножение, обращение матриц, вычисление определителя и ранга, транспонирование, нахождение собственных чисел и собственных векторов, приведение к диагональному, треугольному виду, возведение в степень
Length: 390 (recommended: 50 to 160)
Google preview
Desktop Version

Матричный калькулятор

Сложение, умножение, обращение матриц, вычисление определителя и ранга, транспонирование, нахождение собственных чисел и собственных векторов, приведение к диагональ...

Mobile Version

Favicon for

Матричный калькулятор

Сложение, умножение, обращение матриц, вычисление определителя и ранга, транспонирование, нахождение собственных чисел и собственн...

Great, language/character encoding is specified: utf-8
Hreflang Tags
Alternate URL Hreflang
ar/ ar
bg/ bg
ca/ ca
cs/ cs
de/ de
URL Resolve

No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.

No robots.txt file was found on this page.
URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width, initial-scale=1.0


The results of our semantic analysis are shown below using the website's language.

They are the main concepts covered by

Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.

Калькулятор Confidence: 85% Arrow up

Калькуля́тор («счётчик») — электронное вычислительное устройство для выполнения операций над числами или алгебраическими формулами.

Возведение в степень Confidence: 85% Arrow up

Возведе́ние в сте́пень — бинарная операция, первоначально определяемая как результат многократного умножения натурального числа на себя.

Степень с основанием и показателем обозначается как.

Транспонированная матрица Confidence: 84% Arrow up

Транспонированная матрица — матрица, полученная из исходной матрицы заменой строк на столбцы.

Формально, транспонированная матрица для матрицы размеров  — матрица размеров, определённая как.

Определитель Confidence: 79% Arrow up

Определи́тель (или детермина́нт) — одно из основных понятий линейной алгебры.

Определитель квадратной матрицы размеров, заданной над коммутативным кольцом, является элементом кольца, вычисляемым по формуле, приведённой ниже.

Собственный вектор Confidence: 79% Arrow up

Собственный вектор — понятие в линейной алгебре, определяемое для квадратной матрицы или произвольного линейного преобразования как вектор, умножение матрицы на который или применение к которому преобразования даёт коллинеарный вектор — тот же вектор, умноженный на некоторое скалярное значение, называемое собственным числом матрицы или линейного преобразования.

WEBSITE SPEED website speed is fast. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time


This domain loads at the median speed of 1.2 seconds.

Speed Percentile

72% is faster than approximately 72 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.


This website is ranked #93.137 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Alexa data for

Daily visitors by country

  • daily visitors distribution - Total: 5 countries
  • Flag for IndiaIndia (10.0%)
  • Flag for TurkeyTurkey (3.8%)
  • Flag for United States of AmericaUnited States of America (20.0%)
  • Flag for Iran (Islamic Republic of)Iran (Islamic Republic of) (3.8%)
  • Flaf icon for other countryOthers (62.4%)

Traffic country ranks

Country Rank
Flag for IndiaIndia #99.933
Flag for TurkeyTurkey #63.613
Flag for Russian FederationRussian Federation #178.053
Flag for United States of AmericaUnited States of America #114.547
Flag for Iran (Islamic Republic of)Iran (Islamic Republic of) #58.478


Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

How looks like on a mobile device such as an iPhone.

How looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 61% #ffffff
  • 36% #f0f0f0
  • 1% #f0ffff
  • 1% #f0f0ff
  • 0% #fffff0
  • 0% #fff0f0
  • 0% #fff0ff
  • 0% #f0fff0
  • 0% #9090b0
  • 0% #a0a0b0
  • 0% #a0b0b0
  • 0% #a0b0c0

Text/code ratio's text/code ratio is 10.55%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 10.55%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 0
  • <H2> 0
  • <H3> 1
  • <H4> 0
  • <H5> 0
  • <H6> 0

However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.

We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.

3rd level heading
Thanks to:
Alt attributes Arrow up

We found 0 images on this website.
Great, 0 ALT attributes are missing on your image tags.


This is an overview of your homepage shares on social networks.

You're doing quiet good on social media!

Social shares are a key signal, among many others, that search engines use to evaluate the rankings of a website. Asking people to share your pages, adding visible social share buttons and make great quality content are 3 of the most powerful ways to grow your social presence.

  • Facebook iconFacebook
  • Total Engagement 160
  • Likes 15
  • Shares 78
  • Comments 67
  • Pinterest iconPinterest 0
  • Linkedin iconLinkedin 0
  • Stumbleupon iconStumbleupon 0


Registration Date 03/18/2011 11 years, 1 month, 29 days ago
Last Modified 12/29/2019 2 years, 4 months, 19 days ago
Nameservers Arrow up
Host IP Address Country Flag for RussiaRussia Flag for RussiaRussia


Server map
  • Service Provider (ISP)
  • IP Address
  • Country
  • Flag for RussiaRussia
  • Region
  • Sverdlovskaya Oblast' , Pervouralsk
  • Latitude and Longitude
  • 56.8976 : 59.9741