Keldysh.ru ИПМ им.М.В.Келдыша РАН

Keldysh.ru Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 2.10 sec.

Last Checked: 11/02/2024

Keldysh.ru traffic estimate is about 2,120 unique visitors and 2,756 pageviews per day. The approximated value of keldysh.ru is 52,560 USD. Every unique visitor makes about 1.3 pageviews on average.

Alexa Traffic Rank estimates that keldysh.ru is ranked number 50,161 in the world, while most of its traffic comes from Russian Federation, where it occupies as high as 22,856 place.

It’s good for keldysh.ru that their hosting company Joint-stock company "Internet Exchange "MSK-IX is located in Russian Federation, as that provides the majority of their visitors to benefit from the faster page load time. See the list of other websites hosted by Joint-stock company "Internet Exchange "MSK-IX.

Keldysh.ru is registered under .RU top-level domain. Check other websites in .RU zone.

During the last check (October 06, 2024) keldysh.ru has a valid and up-to-date SSL certificate issued by Let's Encrypt that expires on November 11, 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, Google Safe Search, Symantec and Web of Trust keldysh.ru is pretty a safe domain.

Keldysh.ru General Information

Keldysh.ru Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors
Russian Federation RU	54.1%
Kazakhstan KZ	4.5%
Azerbaijan AZ	3.8%
Ukraine UA	3.3%
Uzbekistan UZ	2.7%
Belarus BY	2.5%
Other	29.4%

Country	Rank
Uzbekistan UZ	15311
Kazakhstan KZ	17615
Russian Federation RU	22856
Belarus BY	23545
Azerbaijan AZ	32224
Ukraine UA	43741

Keldysh.ru Traffic Distribution

Where do visitors go on keldysh.ru?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews
schools.keldysh.ru	64.61%
keldysh.ru	27.25%
dvmh.keldysh.ru	4.18%
textbook.keldysh.ru	1.91%
library.keldysh.ru	1.63%
other	0.43%

Subdomain	Views per User
dvmh.keldysh.ru	6.2
library.keldysh.ru	2
textbook.keldysh.ru	1.3
keldysh.ru	1.2
schools.keldysh.ru	1.1

Subdomain	Reach
schools.keldysh.ru	69.97%
keldysh.ru	26.9%
textbook.keldysh.ru	1.78%
library.keldysh.ru	0.93%
dvmh.keldysh.ru	0.85%

Keldysh.ru Popularity

How popular is keldysh.ru?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	249647	-170761
past month	244078	12177
past week	282920	33464
yesterday	325196	97696

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	394058	-236917	9	90%	1.3	-5.303%
30	398352	35359	9	-10.63%	1.2	-8.397%
7	444446	27177	8	-9.864%	1.3	10%
1	502530	136263	8	-20.91%	1.3	20%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	209425	-152066	28	100%
30	202458	4738	29	-2.31%
7	247343	40318	23	-19.29%
1	285785	95700	23	-32.01%

Press rescan to collect fresh statistics for this website...

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Keldysh.ru Safety Information

Rankchart Summary

Safe

Updated: 11/02/2024

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: 03/25/2024

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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

Safe

Updated: 11/12/2016

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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: 02/25/2021

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McAfee assesses keldysh.ru 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 keldysh.ru for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/10/2019

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

Keldysh.ru SSL Information

Information about SSL/TLS certificates

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Domain	www.keldysh.ru
Issuer Organization	Let's Encrypt
Issuer	R11
Algorithm	RSA-SHA256
Valid form	08/13/2024
Expiration	11/11/2024
Signed	Certificate is not self signed
Additional Domains	keldysh.ru www.keldysh.ru

SSL Checker

Keldysh.ru Server Information

Keldysh.ru Server Location

Where website hosting server is located?

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Keldysh.ru ASN Information

Information about IP address owner

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ASN ID: 8985

ASN Title: Joint-stock company "Internet Exchange "MSK-IX

Updated: 07/29/2024

Raw ASN data:

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS8771 - AS9128'

as-block: AS8771 - AS9128
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2018-11-22T15:27:23Z
last-modified: 2018-11-22T15:27:23Z
source: RIPE

% Information related to 'AS8985'

% Abuse contact for 'AS8985' is 'ip-box@ripn.net'

aut-num: AS8985
as-name: MSK-IX_Services
remarks: Moscow Internet Exchange (MSK-IX)
org: ORG-JCE1-RIPE
import: from AS3316 action pref=100; accept ANY
export: to AS3316 announce AS8985
import: from AS42385 action pref=100; accept ANY
export: to AS42385 announce AS8985
import: from AS45029 action pref=100; accept ANY
export: to AS45029 announce AS8985
remarks: MSK-IX Services upstreams
import: from AS9002 action pref=60; accept ANY
export: to AS9002 announce AS-MSK-IX-SERVICES
import: from AS8359 action pref=60; accept ANY
export: to AS8359 announce AS-MSK-IX-SERVICES
remarks: MSK-IX Services peers
import: from AS8631 action pref=100; accept AS-MSKROUTESERVER
export: to AS8631 announce AS-MSK-IX-SERVICES
remarks: MSK-IX Services customers
import: from AS43832 action pref=130; accept AS-NS5_RIPN_NET
export: to AS43832 announce ANY
import: from AS42385 action pref=130; accept AS-NS9_RIPN_NET
export: to AS42385 announce ANY
import: from AS204582 action pref=130; accept AS204582
export: to AS204582 announce ANY
import: from AS30124 action pref=130; accept AS30124
export: to AS30124 announce ANY
import: from AS59718 action pref=130; accept AS59718
export: to AS59718 announce ANY
import: from AS24406 action pref=130; accept AS24406
export: to AS24406 announce ANY
import: from AS31529 action pref=130; accept AS-DENIC-ANY
export: to AS31529 announce ANY
import: from AS48755 action pref=130; accept AS48755
export: to AS48755 announce ANY
import: from AS5473 action pref=130; accept AS5473
export: to AS5473 announce ANY
import: from AS57182 action pref=130; accept AS57182
export: to AS57182 announce ANY
import: from AS21416 action pref=130; accept AS21416
export: to AS21416 announce ANY
import: from AS62169 action pref=130; accept AS-SMARTENGINEERING
export: to AS62169 announce ANY
import: from AS200362 action pref=130; accept AS200362
export: to AS200362 announce ANY
import: from AS61043 action pref=130; accept AS61043
export: to AS61043 announce ANY
import: from AS43226 action pref=130; accept AS-SAFEDATA
export: to AS43226 announce ANY
import: from AS50157 action pref=130; accept AS50157
export: to AS50157 announce ANY
import: from AS15835 action pref=130; accept AS-MAP
export: to AS15835 announce ANY
import: from AS3316 action pref=130; accept AS-RELARN
export: to AS3316 announce ANY
import: from AS51408 action pref=130; accept AS-SIRIUS
export: to AS51408 announce ANY
import: from AS47691 action pref=130; accept AS47691
export: to AS47691 announce ANY
import: from AS56564 action pref=130; accept AS56564
export: to AS56564 announce ANY
import: from AS201052 action pref=130; accept AS201052
export: to AS201052 announce ANY
import: from AS25371 action pref=130; accept AS25371
export: to AS25371 announce ANY
import: from AS57931 action pref=130; accept AS57931
export: to AS57931 announce ANY
admin-c: RA-ORG
tech-c: RN1863-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: AS3316-MNT
mnt-by: RUIX-MNT
created: 1970-01-01T00:00:00Z
last-modified: 2020-02-12T13:51:53Z
source: RIPE # Filtered

organisation: ORG-JCE1-RIPE
org-name: Joint-stock company "Internet Exchange "MSK-IX
org-type: LIR
address: 8 Marta Street 1, bld. 12, office XXXV, room 19
address: 127083
address: Moscow
address: RUSSIAN FEDERATION
admin-c: EV3802-RIPE
tech-c: IA5224-RIPE
abuse-c: AR49378-RIPE
mnt-ref: RUIX-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: RUIX-MNT
created: 2018-11-16T14:06:09Z
last-modified: 2018-11-16T14:06:10Z
source: RIPE # Filtered
phone: +7 495 7379296

role: RIPN Administration
address: Russian Institute for Public Networks
address: 1 ul. 8 Marta, str. 12
address: 127083, Moscow, Russia
phone: +7 495 7370604
fax-no: +7 499 196 4984
admin-c: EPV3-RIPE
tech-c: IA49-RIPE
nic-hdl: RA-ORG
mnt-by: ROSNIIROS-MNT
created: 1970-01-01T00:00:00Z
last-modified: 2016-01-15T09:36:46Z
source: RIPE # Filtered

role: MSK-IX NOC
address: JSC "MSK-IX"
address: 8 Marta Street 1, bld. 12, office XXXV, room 19
address: Moscow 127083, Russian Federation
phone: +7 495 7370685
phone: +7 499 1929179
fax-no: +7 499 1964984
admin-c: IA49-RIPE
tech-c: IA49-RIPE
tech-c: AVZ28-RIPE
tech-c: MAGR-RIPE
tech-c: DYK9-RIPE
nic-hdl: RN1863-RIPE
mnt-by: RUIX-MNT
created: 2009-03-26T15:52:51Z
last-modified: 2020-03-05T16:01:49Z
source: RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.96 (WAGYU)

Geolocation

ASN Lookup

Keldysh.ru Domain Name Information

Keldysh.ru DNS Information

Domain name service records

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A
MX
NS
TXT
SOA

Host	A Record	TTL
keldysh.ru	195.209.147.217	86400

Host	MX Record	Priority	TTL
keldysh.ru	spp.keldysh.ru	10	86400

Host	NS Record	TTL
keldysh.ru	ns.relarn.ru	86400
keldysh.ru	spp.keldysh.ru	86400

Host	TXT Record	TTL
keldysh.ru	v=spf1 +a +mx ip4:194.226.57.60 ip4:195.209.147.231 ?all	86400

Keldysh.ru Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Keldysh.ru HTML Validation

Keldysh.ru W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Malformed byte sequence: “c8”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “e8”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “e5”.

Malformed byte sequence: “eb”.

Malformed byte sequence: “e4”.

Malformed byte sequence: “fb”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “cd”.

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

Internal encoding declaration “windows-1251” disagrees with the actual encoding of the document (“utf-8”).

Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.

Malformed byte sequence: “dd”.

Malformed byte sequence: “e1”.

Malformed byte sequence: “ed”.

Malformed byte sequence: “f1”.

Malformed byte sequence: “f2”.

Malformed byte sequence: “f3”.

Malformed byte sequence: “ef”.

Malformed byte sequence: “f0”.

Malformed byte sequence: “ea”.

Malformed byte sequence: “ee”.

Malformed byte sequence: “e9”.

The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.

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.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.

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

The “width” attribute on the “td” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Malformed byte sequence: “fc”.

Malformed byte sequence: “ff”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “d1”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “e7”.

Malformed byte sequence: “f4”.

Malformed byte sequence: “f5”.

Malformed byte sequence: “e6”.

Malformed byte sequence: “e3”.

Malformed byte sequence: “fe”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “c7”.

Warnings:

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

NON-DOCUMENT-ERROR:

Too many messages.

HTML Validator

Keldysh.ru Desktop Performance

How Well Keldysh.ru Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

80%

Leverage browser caching

Optimize images

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

Enable compression

Minify HTML

Updated: 09/07/2015

Keldysh.ru Mobile Performance

How Optimized Is Keldysh.ru for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

60%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Updated: 06/20/2019

Keldysh.ru Nearest Competitors

Estimated Nearest Competitors Of Keldysh.ru

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apidock.com
immigrationcanadanetwork.com
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leren.nl
darknet.org.uk
j**********s.com
virtusa.com
plusworld.ru

Keldysh.ru URL Typos

Most common user URL mistypes for keldysh.ru

www.keldysh.com
www.keldysh.net
www.keldysh.org
www.keldysh.info
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www.keldysnh.ru

Total Resources	37
Number of Hosts	2
Static Resources	34
CSS Resources	1

CSS	2.2 KBytes
Images	120.5 KBytes
HTML	16.0 KBytes
Other	535.0 Bytes

Total Resources	38
Number of Hosts	1
Static Resources	35
CSS Resources	1

CSS	2.3 KBytes
Images	112.7 KBytes
HTML	18.5 KBytes
Other	1.3 KBytes