Calculatoria.com Online scientific calculator with tape - CALCULATORIA.com

Calculator online. Simple and scientific. With calculation memory

Calculatoria.com Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 2.77 sec.

Last Checked: 07/07/2025

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Calculatoria.com traffic estimate is about 409 unique visitors and 409 pageviews per day. The approximated value of calculatoria.com is 2,920 USD. Every unique visitor makes about 1 pageviews on average.

Alexa Traffic Rank estimates that calculatoria.com is ranked number 84,672 in the world.

Calculatoria.com server is located in Czech Republic, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time. See the list of other websites hosted by Valvera s.r.o.

Calculatoria.com is registered under .COM top-level domain. Check other websites in .COM zone.

During the last check (August 23, 2024) calculatoria.com has an expired wildcard SSL certificate issued by Let's Encrypt (expired on October 18, 2024), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by Let's Encrypt.

In accordance with Google Safe Browsing and Symantec calculatoria.com is pretty a safe domain.

Relying on Google Mobile-Friendly test calculatoria.com is well optimized for mobile and tablet devices, however website page loading time may be improved.

Calculatoria.com General Information

Calculatoria.com Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

Calculatoria.com Traffic Distribution

Where do visitors go on calculatoria.com?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

Calculatoria.com Popularity

How popular is calculatoria.com?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	1687125	-2680607
past month	1425570	-164698

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	2161954	-2216169	1	300%	1	-33.33%
30	1842631	-228782	1	20%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1507059	-2971022	3	500%
30	1223168	-176361	3	20%

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Calculatoria.com Safety Information

Rankchart Summary

Unknown

Updated: 07/07/2025

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 03/31/2025

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Unknown

Updated: 07/07/2025

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 03/01/2021

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McAfee assesses calculatoria.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze calculatoria.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Not Checked

Updated: 07/07/2025

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The WOT calculates reputation of the calculatoria.com. This reputation system receives ratings from users and information from third-party sources, assesses the calculatoria.com for safety features and confirms, whether calculatoria.com is suitable for children.

Calculatoria.com SSL Information

Information about SSL/TLS certificates

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Domain	*.kalkula.cz
Issuer Organization	Let's Encrypt
Issuer	R10
Algorithm	RSA-SHA256
Valid form	07/20/2024
Expiration	10/18/2024
Signed	Certificate is not self signed
Additional Domains	.calculatoria.com .kalkula.cz .kalkulacka.sk .karkulacka.cz .karkulacka.sk .kaukulacka.cz .kaukulacka.sk .kaukulator.cz *.kaukulator.sk calculatoria.com kalkula.cz kalkulacka.sk karkulacka.cz karkulacka.sk kaukulacka.cz kaukulacka.sk kaukulator.cz kaukulator.sk

SSL Checker

Calculatoria.com Server Information

Calculatoria.com Server Location

Where website hosting server is located?

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Calculatoria.com ASN Information

Information about IP address owner

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ASN ID: 60086

ASN Title: Valvera s.r.o.

Updated: 12/26/2024

Raw ASN data:

Geolocation

ASN Lookup

Calculatoria.com Domain Name Information

Calculatoria.com DNS Information

Domain name service records

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A
NS
SOA

Host	A Record	TTL
calculatoria.com	217.168.209.65	3600

Host	NS Record	TTL
calculatoria.com	ns1.regzone.cz	3600
calculatoria.com	ns1.regzone.info	3600
calculatoria.com	ns1.regzone.de	3600

Calculatoria.com Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Calculatoria.com HTML Validation

Calculatoria.com W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Internal encoding declaration “windows-1250” disagrees with the actual encoding of the document (“utf-8”).

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Malformed byte sequence: “e1”.

Malformed byte sequence: “ed”.

Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.

Bad value “Pragma” for attribute “http-equiv” on element “meta”.

Bad value “Expires” for attribute “http-equiv” on element “meta”.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Bad value “window.location.href='/simple-online-calculator/';//advHide('');blur(this)” for attribute “onclick” on element “a”: missing } after function body

Bad value “” for attribute “rows” on element “textarea”: The empty string is not a valid positive integer.

Bad value “” for attribute “cols” on element “textarea”: The empty string is not a valid positive integer.

Attribute “!onclick” not allowed on element “a” at this point.

Malformed byte sequence: “80”.

Malformed byte sequence: “e8”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “fd”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Malformed byte sequence: “a9”.

Malformed byte sequence: “9e”.

Malformed byte sequence: “9a”.

Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Warnings:

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Attribute “!onclick” is not serializable as XML 1.0.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

HTML Validator

Calculatoria.com Desktop Performance

How Well Calculatoria.com Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

61%

Enable compression

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Optimize images

Minify JavaScript

Minify HTML

Minify CSS

Updated: 09/21/2015

Calculatoria.com Mobile Performance

How Optimized Is Calculatoria.com for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

99%

Size tap targets appropriately

Updated: 09/21/2015

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Calculatoria.com URL Typos

Most common user URL mistypes for calculatoria.com

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Total Resources	57
Number of Hosts	14
Static Resources	34
JavaScript Resources	15
CSS Resources	5

CSS	131.6 KBytes
Images	94.9 KBytes
HTML	292.6 KBytes
JavaScript	1.2 MBytes
Other	2.9 KBytes

Total Resources	62
Number of Hosts	17
Static Resources	36
JavaScript Resources	15
CSS Resources	5

CSS	131.6 KBytes
Images	80.3 KBytes
HTML	281.0 KBytes
JavaScript	1.2 MBytes
Other	5.2 KBytes