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Download websites using Congressus

CRM · by Congressus · Proprietary

136 sites -89.43% YoY Latest export · 0 days ago
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About Congressus

Congressus is a membership management and event registration platform designed primarily for associations, clubs, and non-profit organizations. It provides tools for managing member databases, processing membership fees, organizing events, and communicating with members through integrated email features.

Based in the Netherlands, Congressus targets European associations and professional organizations that need an all-in-one solution for member lifecycle management. The platform includes a self-service member portal, automated renewal reminders, and reporting dashboards. It is particularly popular among Dutch and Belgian associations seeking a straightforward, localized platform that handles both administrative tasks and member engagement without requiring extensive technical resources.

At a glance

CategoryCRM
VendorCongressus
LicenseProprietary
136 Sites detected
0.0% Of all websites
-89.4% YoY change

Database preview of Congressus sites

Congressus detection is a value inside the Technologies column. Two datasets carry it — switch between them to compare what's included.

webatla-technologies-congressus-2026-06-13.jsonl.zst · 136 rows · 1 B · 14 columns Daily fresh export
DomainTLD suffixTLDDomain typeHTTP statusIP addressCountry by IPSocial networksTechnologies last data checkedTechnologiesPR valueHarmonic valueDomain creation dateDomain expiration date
knvm.orgorgorgICANNHTTP 200109.71.54.19NL{"linkedin":["https://linkedin.com/company/knvm"]}2026-05-17HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Analytics GA4, Amazon Web Services0.000000057634316,647,4902010-07-062026-07-06
kleinwonenindetippe.nlnlnlICANNHTTP 20086.105.244.1NL{"facebook":["https://facebook.com/groups/kleinwonenindetippe"],"linkedin":["http://linkedin.com/company/klein-wonen-in-de-tippe","https://linkedin.com/company/klein-wonen-in-de-tippe"],"instagram":["https://instagram.com/kleinwonenindetippe"]}2026-05-17HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA40.000000030336616,504,1452022-02-17
bvhm.nlnlnlICANNHTTP 20086.105.244.1NL{"facebook":["https://nl-nl.facebook.com/pages/category/Fast-Food-Restaurant/Snackbar-t-Haasje-540913206027444"]}2026-04-30HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA40.000000027709416,504,1432003-10-15
ber-voetreflexologie.nlnlnlICANNHTTP 20086.105.244.1NL{"facebook":["https://facebook.com/pages/Bond-van-Europese-Reflexologen/100992192777483"]}2026-04-29HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA40.000000018662712,581,5302013-04-30
ifbso.comcomcomICANNHTTP 20086.105.244.1NL{"linkedin":["https://linkedin.com/company/ifbso"]}2026-05-14HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA40.000000015585413,956,9551998-06-122027-06-11
DomainTLD suffixTLDDomain typeHTTP statusIP addressCountry by IPSocial networksTechnologies last data checkedTechnologiesDNS last data checkedDNS StatusDNS recordsPR valueHarmonic valueRDAP/WHOIS last data checkedRDAP/WHOIS methodDomain creation dateDomain expiration dateDomain last changedRegistrarRDAP/WHOIS RecordResponse Status RDAP/WHOIS
knvm.orgorgorgICANNHTTP 200109.71.54.19NL{"linkedin":["https://linkedin.com/company/knvm"]}2026-05-17HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Analytics GA4, Amazon Web Services2026-06-08TRUE{"A":["109.71.54.19"],"MX":[{"host":"mx10.onlinemailscanner.com","priority":10},{"host":"mx20.onlinemailscanner.com","priority":20},{"host":"mx30.onlinemailscanner.com","priority":30},{"host":"mx40.onlinemailscanner.com","priority":40}],"NS":["ns1.yourwebhoster.com","ns2.yourwebhoster.com","ns3.yourwebhoster.nl","ns4.yourwebhoster.nl"],"SOA":{"mname":"ns1.yourwebhoster.com","retry":7200,"rname":"support.xxlwebhosting.nl","expire":1209600,"serial":2024082302,"minimum":86400,"refresh":43200},"TXT":["globalsign-domain-verification=Ds-SgTCMsIRNWY-e-EhTIN04QJUnaqVWlVe0xg29Dv","v=spf1 ip4:109.71.54.19 +a +mx +ip4:109.71.51.122 include:relay.mailchannels.net include:amazonses.com ~all"],"AAAA":["2a03:3b00:1:0:700a:b7ff:fe10:5910"]}0.000000057634316,647,4902025-08-18RDAP2010-07-062026-07-062025-08-18InterNetX GmbH{"raw_response":{"links":[{"rel":"related","href":"https://rdap.registrar.internetx.com/domain/knvm.org","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/knvm.org"},{"rel":"self","href":"https://rdap.publicinterestregistry.org/rdap/domain/knvm.org","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/knvm.org"}],"events":[{"eventDate":"2013-09-25T09:08:56.123Z","eventAction":"transfer"},{"eventDate":"2026-07-06T21:45:09.123Z","eventAction":"expiration"},{"eventDate":"2010-07-06T21:45:09.123Z","eventAction":"registration"},{"eventDate":"2025-07-06T21:45:43.313Z","eventAction":"last changed"},{"eventDate":"2025-08-18T10:52:17.871Z","eventAction":"last update of RDAP database"}],"status":["auto renew period"],"ldhName":"knvm.org","notices":[{"links":[{"rel":"terms-of-service","href":"https://thenew.org/org-people/about-pir/policies/","type":"text/html","value":"https://rdap.publicinterestregistry.org/rdap/domain/knvm.org"}],"title":"Terms of Service","description":["Public Interest Registry provides this RDAP service for informational purposes only, and to assist persons in obtaining information about or related to a domain name registration record. Public Interest Registry does not guarantee its accuracy. Users accessing the Public Interest Registry RDAP service agree to use the data only for lawful purposes, and under no circumstances may this data be used to: a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the registrar's own existing customers and b) enable high volume, automated, electronic processes that send queries or data to the systems of Public Interest Registry or any ICANN-accredited registrar, except as reasonably necessary to register domain names or modify existing registrations. When using the Public Interest Registry RDAP service, please consider the following: the RDAP service is not a replacement for standard EPP commands to the SRS service. RDAP is not considered authoritative for registered domain objects. The RDAP service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the RDAP services are throttled. If too many queries are received from a single IP address within a specified time, the service will begin to reject further queries for a period of time to prevent disruption of RDAP service access. Abuse of the RDAP system through data mining is mitigated by detecting and limiting bulk query access from single sources. Where applicable, the presence of a [Non-Public Data] tag indicates that such data is not made publicly available due to applicable data privacy laws or requirements. Should you wish to contact the registrant, please refer to the RDAP records available through the registrar URL listed above. Access to non-public data may be provided, upon request, where it can be reasonably confirmed that the requester holds a specific legitimate interest and a proper legal basis for accessing the withheld data. Access to this data can be requested by submitting a request to WHOISrequest@pir.org. Public Interest Registry Inc. reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy."]},{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"application/rdap+json","value":"https://icann.org/epp"}],"title":"Status Codes","description":["For more information on domain status codes, please visit https://icann.org/epp"]},{"links":[{"rel":"help","href":"https://icann.org/wicf","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/domain/knvm.org"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"roles":["registrant"],"events":[{"eventDate":"2025-08-18T10:52:17.871Z","eventAction":"last update of RDAP database"}],"remarks":[{"type":"object redacted due to authorization","title":"REDACTED","description":["Some of the data in this object has been removed."]}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["org",{"type":"work"},"text","KNVM"],["adr",{"cc":"NL"},"text",["","","","","NL","",""]]]],"objectClassName":"entity"},{"links":[{"rel":"self","href":"https://rdap.publicinterestregistry.org/rdap/entity/151","type":"application/rdap+json","value":"https://rdap.publicinterestregistry.org/rdap/entity/151"},{"rel":"about","href":"https://rdap.registrar.internetx.com/","type":"application/rdap+json","value":"https://rdap.registrar.internetx.com/"}],"roles":["registrar"],"handle":"151","entities":[{"roles":["abuse"],"handle":"7567080cc6d9432caf9f4ee72ec75664-LROR","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","Markus Schmitt"],["tel",{"type":"voice"},"uri","tel:+49.941595590"],["email",{},"text","domain-abuse@internetx.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"151"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","InterNetX GmbH"]]],"objectClassName":"entity"}],"redacted":[{"name":{"type":"Registry Domain ID"},"method":"removal","prePath":"$.handle","pathLang":"jsonpath"},{"name":{"description":"Administrative Contact"},"method":"removal"},{"name":{"description":"Technical Contact"},"method":"removal"},{"name":{"type":"Registry Registrant ID"},"method":"removal","prePath":"$.entities[?(@.roles[0]=='registrant')].handle","pathLang":"jsonpath"},{"name":{"type":"Registrant Name"},"method":"emptyValue","pathLang":"jsonpath","postPath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='fn')][3]"},{"name":{"type":"Registrant Street"},"method":"emptyValue","pathLang":"jsonpath","postPath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][:3]"},{"name":{"type":"Registrant City"},"method":"emptyValue","pathLang":"jsonpath","postPath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][3]"},{"name":{"type":"Registrant Postal Code"},"method":"emptyValue","pathLang":"jsonpath","postPath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='adr')][3][5]"},{"name":{"type":"Registrant Phone"},"method":"removal","prePath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[1].type=='voice')]","pathLang":"jsonpath"},{"name":{"type":"Registrant Fax"},"method":"removal","prePath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[1].type=='fax')]","pathLang":"jsonpath"},{"name":{"type":"Registrant Email"},"method":"removal","prePath":"$.entities[?(@.roles[0]=='registrant')].vcardArray[1][?(@[0]=='email')]","pathLang":"jsonpath"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"151"}],"secureDNS":{"maxSigLife":1,"delegationSigned":false},"nameservers":[{"handle":"aabd0c9522444cf1a9a40172715a607c-LROR","status":["associated"],"ldhName":"ns1.yourwebhoster.com","unicodeName":"ns1.yourwebhoster.com","objectClassName":"nameserver"},{"handle":"1f7208d43040494fb82a16f98564069f-LROR","status":["associated"],"ldhName":"ns2.yourwebhoster.com","unicodeName":"ns2.yourwebhoster.com","objectClassName":"nameserver"},{"handle":"fefe475de8294a02af185c84783b60ee-LROR","status":["associated"],"ldhName":"ns3.yourwebhoster.nl","unicodeName":"ns3.yourwebhoster.nl","objectClassName":"nameserver"},{"handle":"03a205be5d84489a931755dcb70575ea-LROR","status":["associated"],"ldhName":"ns4.yourwebhoster.nl","unicodeName":"ns4.yourwebhoster.nl","objectClassName":"nameserver"}],"unicodeName":"knvm.org","objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_response_profile_1","icann_rdap_technical_implementation_guide_1","redacted"]}}Domain is active
kleinwonenindetippe.nlnlnlICANNHTTP 20086.105.244.1NL{"facebook":["https://facebook.com/groups/kleinwonenindetippe"],"linkedin":["http://linkedin.com/company/klein-wonen-in-de-tippe","https://linkedin.com/company/klein-wonen-in-de-tippe"],"instagram":["https://instagram.com/kleinwonenindetippe"]}2026-05-17HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA42026-05-31TRUE{"A":["86.105.244.1"],"MX":[{"host":"ALT2.ASPMX.L.GOOGLE.COM","priority":5},{"host":"ALT3.ASPMX.L.GOOGLE.COM","priority":10},{"host":"ALT4.ASPMX.L.GOOGLE.COM","priority":10},{"host":"ASPMX.L.GOOGLE.COM","priority":1}],"NS":["ns0.transip.net","ns1.transip.nl","ns2.transip.eu"],"SOA":{"mname":"ns0.transip.net","retry":1800,"rname":"hostmaster.transip.nl","expire":2419200,"serial":2026052603,"minimum":300,"refresh":86400},"TXT":["5 ALT1.ASPMX.L.GOOGLE.COM.","google-site-verification=8AgmDXOXnZd39zrkWCg9phN3wFO2gmYv7GMYiOa8hj0","google-site-verification=RrrCj15nufxtaL63EZS6vS7SJ7aMqD03AwiDfTYo6F0","v=spf1 a mx include:_spf.transip.email include:amazonses.com include:_spf.google.com ~all"],"AAAA":["2a01:7c8:e100:1::50a0"]}0.000000030336616,504,1452026-05-28RDAP2022-02-172024-03-30team.blue nl B.V.{"raw_response":{"lang":"nl-NL","links":[{"rel":"self","href":"https://rdap.sidn.nl/domain/kleinwonenindetippe.nl","type":"application/rdap+json","value":"https://rdap.sidn.nl/domain/kleinwonenindetippe.nl"}],"events":[{"eventDate":"2022-02-17T18:54:12Z","eventAction":"registration"},{"eventDate":"2024-03-30T17:06:16Z","eventAction":"last changed"},{"eventDate":"2026-05-28T11:10:12Z","eventAction":"last update of RDAP database"}],"handle":"REDACTED-BY-SIDN","status":["active"],"ldhName":"kleinwonenindetippe.nl","notices":[{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.sidn.nl/domain/kleinwonenindetippe.nl"}],"title":"Status Codes","description":["Meer informatie over domeinstatuscodes vind je op https://icann.org/epp","For more information on domain status codes, please visit https://icann.org/epp"]},{"title":"Privacy notice","description":["De houdergegevens kunnen afgeschermd zijn. Meer informatie hierover vind je op: https://www.sidn.nl/nl-domeinnaam/sidn-en-privacy","The registrant's details can be withheld from public view. For more information, see https://www.sidn.nl/en/nl-domain-name/sidn-and-privacy"]},{"title":"Maintainer","description":["Administratie door: SIDN BV","Record maintained by: SIDN BV"]},{"links":[{"rel":"help","href":"https://icann.org/wicf","type":"text/html","value":"https://rdap.sidn.nl/domain/kleinwonenindetippe.nl"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://www.icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"https://rdap.sidn.nl/entity/VOG010989-TRAIP","type":"application/rdap+json","value":"https://rdap.sidn.nl/entity/VOG010989-TRAIP"}],"roles":["technical"],"handle":"VOG010989-TRAIP","vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","REDACTED FOR 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is active
bvhm.nlnlnlICANNHTTP 20086.105.244.1NL{"facebook":["https://nl-nl.facebook.com/pages/category/Fast-Food-Restaurant/Snackbar-t-Haasje-540913206027444"]}2026-04-30HSTS, cdnjs, jQuery 1.11.3, Bootstrap dbf89d913f10b3956bb3fa57bee25c67, Amazon SES, Cloudflare, Congressus, Open Graph, Google Font API, Google Analytics GA42026-06-07TRUE{"A":["86.105.244.1"],"DS":[{"digest":"fca2679f544a48474c7d8369c4ef629a16977d960b1e1106e8d646ff3d907e32","key_tag":7726,"algorithm":13,"digest_type":2}],"MX":[{"host":"ALT1.ASPMX.L.GOOGLE.COM","priority":5},{"host":"ALT2.ASPMX.L.GOOGLE.COM","priority":5},{"host":"ALT3.ASPMX.L.GOOGLE.COM","priority":10},{"host":"ALT4.ASPMX.L.GOOGLE.COM","priority":10},{"host":"ASPMX.L.GOOGLE.COM","priority":1}],"NS":["ns0.transip.net","ns1.transip.nl","ns2.transip.eu"],"SOA":{"mname":"ns0.transip.net","retry":1800,"rname":"hostmaster.transip.nl","expire":2419200,"serial":2022050902,"minimum":300,"refresh":86400},"TXT":["google-site-verification=gtEDMm0g_pe2GtYgPqJTMJG6T6rvVg-CUiorvZQy828","v=spf1 a mx include:amazonses.com ~all"],"AAAA":["2a01:7c8:e100:1::50a0"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"dao24X+wWt37w+qCE9Lg1gk2KPCwjTGCNHZbSXtl8T6l03GrK7oXuR8OWhB9qBd6OiC2L3lStTdCtPPvZ3AF5Q=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"8mFAFvdhURTeriVkwhyM0Bbujly+yrNnBRLYe4icRmdxM0SuQNZtl4TDEWjIIYKXcAgdvVmKm4LV/+vUBrb3kA=="}]}0.000000027709416,504,1432026-05-29RDAP2003-10-152021-10-20team.blue nl B.V.{"raw_response":{"lang":"nl-NL","links":[{"rel":"self","href":"https://rdap.sidn.nl/domain/bvhm.nl","type":"application/rdap+json","value":"https://rdap.sidn.nl/domain/bvhm.nl"}],"events":[{"eventDate":"2003-10-15T15:16:31Z","eventAction":"registration"},{"eventDate":"2021-10-20T12:07:55Z","eventAction":"last changed"},{"eventDate":"2026-05-29T08:33:23Z","eventAction":"last update of RDAP database"}],"handle":"REDACTED-BY-SIDN","status":["active"],"ldhName":"bvhm.nl","notices":[{"links":[{"rel":"glossary","href":"https://icann.org/epp","type":"text/html","value":"https://rdap.sidn.nl/domain/bvhm.nl"}],"title":"Status Codes","description":["Meer informatie over domeinstatuscodes vind je op https://icann.org/epp","For more information on domain status codes, please visit https://icann.org/epp"]},{"title":"Privacy notice","description":["De houdergegevens kunnen afgeschermd zijn. 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Showing 5 of 136 rows · Technologies · Full website tech stack per site — CMS, payments, analytics, frameworks.

+ 4 datasets don't carry the Technologies column.

The Congressus dataset

Every site we've detected as running Congressus — with version, hosting, country, TLD and traffic rank.

Congressus lives inside 2 datasets

Congressus detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 136-site list — or grab a free preview first.

See datasets ↓ Download free preview (20 rows)

Your Congressus downloads

The datasets you own, sliced to Congressus. Every button streams the latest daily export directly.

Format: JSONL (zstd) Latest export: 0 days ago

API, columns & recipes → /account/api

Frequently asked questions

How many websites use Congressus?

webatla detects Congressus on 136 websites, refreshed daily — each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using Congressus?

Yes — as structured JSONL. Pay once for one month, no subscription; grab a free sample first.

What's included for each site, and how fresh is it?

Domain, DNS, RDAP/WHOIS, the full technology stack, IP & country, PageRank and Harmonic — re-detected and re-exported daily.