Sei.org

Sei.org Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 04/18/2024

Sei.org traffic estimate is about 137,302 unique visitors and 823,812 pageviews per day. The approximated value of sei.org is 1,186,560 USD. Every unique visitor makes about 6 pageviews on average.

sei.org is hosted by CLOUDFLARESPECTRUM Cloudflare, Inc., GB. See the list of other websites hosted by CLOUDFLARESPECTRUM Cloudflare, Inc., GB.

Sei.org is registered under .ORG top-level domain. Check other websites in .ORG zone.

During the last check (December 13, 2022) sei.org has an expired SSL certificate issued by Let's Encrypt (expired on February 18, 2023), 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, Symantec and Web of Trust sei.org is pretty a safe domain.

Relying on Google Mobile-Friendly test sei.org isn't optimized for mobile and tablet devices. Designing your websites to be mobile friendly ensures that your pages perform well on all devices, also website page loading time may be improved.

Sei.org General Information

Information not available

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Sei.org Safety Information

Rankchart Summary

Unknown

Updated: 04/18/2024

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: 04/23/2023

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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

Not Checked

Updated: 04/18/2024

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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: 01/11/2019

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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: 05/12/2021

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McAfee assesses sei.org 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 sei.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 02/19/2019

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

Sei.org SSL Information

Information about SSL/TLS certificates

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Domain	sei.org
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	11/20/2022
Expiration	02/18/2023
Signed	Certificate is not self signed
Additional Domains	sei.org

SSL Checker

Sei.org Server Information

Sei.org Server Location

Where website hosting server is located?

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Sei.org ASN Information

Information about IP address owner

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ASN ID: 209242

ASN Title: CLOUDFLARESPECTRUM Cloudflare, Inc., GB

Updated: 10/22/2023

Raw ASN data:

Geolocation

ASN Lookup

Sei.org Domain Name Information

Sei.org DNS Information

Domain name service records

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A

Host	A Record	TTL

Sei.org Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Sei.org HTML Validation

Sei.org W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

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

End tag “header” seen, but there were open elements.

Unclosed element “div”.

Bad value “458px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “610.5px” for attribute “width” on element “img”: Expected a digit but saw “.” instead.

Element “img” is missing required attribute “src”.

Bad value “263.5px” for attribute “height” on element “img”: Expected a digit but saw “.” instead.

Bad value “744px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “338px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “512px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “689px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “687px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

End tag “br”.

Bad value “341.5px” for attribute “height” on element “img”: Expected a digit but saw “.” instead.

Bad value “285.5px” for attribute “height” on element “img”: Expected a digit but saw “.” instead.

Bad value “469px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “342.5px” for attribute “height” on element “img”: Expected a digit but saw “.” instead.

Bad value “688.5px” for attribute “width” on element “img”: Expected a digit but saw “.” instead.

Bad value “691.5px” for attribute “width” on element “img”: Expected a digit but saw “.” instead.

Bad value “213.5px” for attribute “height” on element “img”: Expected a digit but saw “.” instead.

Bad value “320px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “671px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

End tag for “body” seen, but there were unclosed elements.

Warnings:

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Empty heading.

HTML Validator

Sei.org Desktop Performance

How Well Sei.org Performs On Desktops?

Website desktop performance and usability tips

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Data not available...

Sei.org Mobile Performance

How Optimized Is Sei.org for Mobile Devices?

Tips on speeding up mobile site performance

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Data not available...

Sei.org Nearest Competitors

Estimated Nearest Competitors Of Sei.org

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Sei.org URL Typos

Most common user URL mistypes for sei.org

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