Ra

Download websites using RackCache

Server Software · since 2008 · open source

8K sites -84.33% YoY Latest export · 0 days ago
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About RackCache

Rack::Cache is a Ruby middleware component for Rack-based web applications that implements HTTP caching semantics, including support for cache validation, conditional GET requests, and expiration-based caching. It can serve as a reverse proxy cache placed in front of a Rack application to reduce backend load and improve response times.

Commonly used with Ruby on Rails and Sinatra applications, Rack::Cache stores cached responses in configurable storage backends and respects standard HTTP cache headers such as Cache-Control, ETag, and Last-Modified. It is a lightweight, standards-compliant caching layer favored by Ruby developers who want improved performance without deploying a separate caching proxy like Varnish.

At a glance

CategoryServer Software
LanguageRuby
LicenseMIT
First release2008-01-01
7,965 Sites detected
0.0% Of all websites
-84.3% YoY change

Database preview of RackCache sites

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

webatla-technologies-rackcache-2026-06-15.jsonl.zst · 7,965 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
codecanyon.netnetnetICANNHTTP 200104.18.34.245US{"youtube":["https://youtube.com/user/Envato"],"facebook":["https://facebook.com/envato"],"instagram":["https://instagram.com/envato"],"pinterest":["https://pinterest.com/envato"],"x-twitter":["https://twitter.com/envato"]}2026-05-03HSTS, Ruby, Stimulus, Cookiebot, RackCache, Cloudflare, Google Ads, Open Graph, Ruby on Rails, Google Analytics0.000010370518,032,2142009-10-292027-10-29
knowyourmeme.comcomcomICANNHTTP 200104.20.39.42US{"tiktok":["https://tiktok.com/@knowyourmeme"],"discord":["https://discord.com/invite/hxZaGpg"],"youtube":["https://youtube.com/knowyourmeme"],"facebook":["https://facebook.com/knowyourmeme"],"snapchat":["https://snapchat.com/p/41102048-8d2d-4288-b54e-c9e89b1afa44/1534121873233920"],"instagram":["https://instagram.com/knowyourmeme"],"x-twitter":["https://x.com/knowyourmeme"]}2026-05-17RSS, HSTS, Ruby, Sectigo, Stimulus, RackCache, Cloudflare, Open Graph, Google Analytics GA4, Google Workspace0.0000069658417,829,4642007-11-252026-11-25
dudebropartymassacre3.comcomcomICANNHTTP 20015.197.225.128US{"facebook":["https://facebook.com/dudebropartymassacre3"],"instagram":["http://instagram.com/5sf"],"x-twitter":["http://twitter.com/5sf"]}2026-05-06HSTS, Ruby, Imgix, jQuery 1.11.1, GoDaddy, Modernizr, RackCache, Cloudflare, Font Awesome 4.3.0, Google Cloud0.0000043789614,073,6602014-04-292027-04-29
graphicriver.netnetnetICANNHTTP 200104.18.41.37US{"youtube":["https://youtube.com/user/Envato"],"facebook":["https://facebook.com/envato"],"instagram":["https://instagram.com/envato"],"pinterest":["https://pinterest.com/envato"],"x-twitter":["https://twitter.com/envato"]}2026-05-11HSTS, Ruby, Stimulus, Cookiebot, RackCache, Cloudflare, Google Ads, Open Graph, Ruby on Rails, Google Analytics0.0000017375817,253,4002006-08-312027-08-31
crunch.comcomcomICANNHTTP 2003.95.47.163US{"tiktok":["https://tiktok.com/@crunchfitness"],"youtube":["http://youtube.com/crunch"],"facebook":["https://facebook.com/crunch"],"instagram":["https://instagram.com/crunchgym"],"x-twitter":["https://twitter.com/crunchgym"]}2026-05-04HSTS, Ruby, Nginx, Dropbox, HubSpot, RackCache, Google Ads, Open Graph, Snap Pixel, TikTok Pixel0.0000015603616,945,0701999-02-122027-02-12
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
codecanyon.netnetnetICANNHTTP 200104.18.34.245US{"youtube":["https://youtube.com/user/Envato"],"facebook":["https://facebook.com/envato"],"instagram":["https://instagram.com/envato"],"pinterest":["https://pinterest.com/envato"],"x-twitter":["https://twitter.com/envato"]}2026-05-03HSTS, Ruby, Stimulus, Cookiebot, RackCache, Cloudflare, Google Ads, Open Graph, Ruby on Rails, Google Analytics2026-06-11TRUE{"A":["104.18.34.245","172.64.153.11"],"DS":[{"digest":"a9a7cd96802ed58e1443454e9ae3958dbda2cfbe411ccef05f7149de44d24bfd","key_tag":2371,"algorithm":13,"digest_type":2}],"NS":["emma.ns.cloudflare.com","fred.ns.cloudflare.com"],"SOA":{"mname":"emma.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2405227720,"minimum":1800,"refresh":10000},"TXT":["google-site-verification=feUSO0Lms1Fa93pYglTFjzdeTJAx4b8dPBt-TYElDhc","google-site-verification=ySMLIcaqfTCKUQXId6VeFcoNA-sxWaBZk4VSsTyfj9g","v=spf1 -all","yandex-verification: b4b01b75b3d86324"],"DNSKEY":[{"flags":256,"protocol":3,"algorithm":13,"public_key":"oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA=="},{"flags":257,"protocol":3,"algorithm":13,"public_key":"mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+KkxLbxILfDLUT0rAK9iUzy1L53eKGQ=="}]}0.000010370518,032,2142025-09-30RDAP2009-10-292027-10-292025-09-29MarkMonitor Inc.{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/net/v1/domain/CODECANYON.NET","type":"application/rdap+json","value":"https://rdap.verisign.com/net/v1/domain/CODECANYON.NET"},{"rel":"related","href":"https://rdap.markmonitor.com/rdap/domain/CODECANYON.NET","type":"application/rdap+json","value":"https://rdap.markmonitor.com/rdap/domain/CODECANYON.NET"}],"events":[{"eventDate":"2009-10-29T02:40:57Z","eventAction":"registration"},{"eventDate":"2027-10-29T02:40:57Z","eventAction":"expiration"},{"eventDate":"2025-09-27T10:21:20Z","eventAction":"last changed"},{"eventDate":"2025-09-29T22:59:50Z","eventAction":"last update of RDAP database"}],"handle":"1573856761_DOMAIN_NET-VRSN","status":["client delete prohibited","client transfer prohibited","client update prohibited"],"ldhName":"CODECANYON.NET","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/net/v1/domain/codecanyon.net"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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":"text/html","value":"https://rdap.verisign.com/net/v1/domain/codecanyon.net"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.markmonitor.com","type":"text/html","value":"https://rdap.markmonitor.com/rdap/"}],"roles":["registrar"],"handle":"292","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.2086851750"],["email",{},"text","abusecomplaints@markmonitor.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"292"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","MarkMonitor Inc."]]],"objectClassName":"entity"}],"secureDNS":{"dsData":[{"digest":"A9A7CD96802ED58E1443454E9AE3958DBDA2CFBE411CCEF05F7149DE44D24BFD","keyTag":2371,"algorithm":13,"digestType":2}],"delegationSigned":true},"nameservers":[{"ldhName":"EMMA.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"FRED.NS.CLOUDFLARE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
knowyourmeme.comcomcomICANNHTTP 200104.20.39.42US{"tiktok":["https://tiktok.com/@knowyourmeme"],"discord":["https://discord.com/invite/hxZaGpg"],"youtube":["https://youtube.com/knowyourmeme"],"facebook":["https://facebook.com/knowyourmeme"],"snapchat":["https://snapchat.com/p/41102048-8d2d-4288-b54e-c9e89b1afa44/1534121873233920"],"instagram":["https://instagram.com/knowyourmeme"],"x-twitter":["https://x.com/knowyourmeme"]}2026-05-17RSS, HSTS, Ruby, Sectigo, Stimulus, RackCache, Cloudflare, Open Graph, Google Analytics GA4, Google Workspace2026-05-28TRUE{"A":["104.20.39.42","172.66.170.251"],"MX":[{"host":"alt1.aspmx.l.google.com","priority":20},{"host":"alt2.aspmx.l.google.com","priority":20},{"host":"aspmx.l.google.com","priority":10},{"host":"aspmx2.googlemail.com","priority":30},{"host":"aspmx3.googlemail.com","priority":30}],"NS":["ns11.constellix.com","ns21.constellix.com","ns31.constellix.com","ns41.constellix.net","ns51.constellix.net","ns61.constellix.net"],"SOA":{"mname":"ns11.constellix.com","retry":3600,"rname":"dns.constellix.com","expire":1209600,"serial":2015010136,"minimum":180,"refresh":43200},"TXT":["facebook-domain-verification=4o8al1i2zm2tik5ols4tskqgee2j9a","google-site-verification=6mUL26RNG2qufP86iCzhnkVt6Ic6PVNpGFx6uTsxP1E","google-site-verification=7CbbMZbhj2-T_DB_Oj1-L6_dnjRMXaWYbCxIpOwwSLs","google-site-verification=Ys3s5VMqk-4CawYIpXuujESmJYSoaCDIQlUNVoDZqWQ","google-site-verification=bTjzjsNHD3YHF18GyOC9Gb_VKXr8bK28G9JWemGTABc","v=spf1 include:_spf.google.com ~all"],"AAAA":["2606:4700:10::6814:272a","2606:4700:10::ac42:aafb"]}0.0000069658417,829,4642025-07-06RDAP2007-11-252026-11-252025-07-06GoDaddy.com, LLC{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/com/v1/domain/KNOWYOURMEME.COM","type":"application/rdap+json","value":"https://rdap.verisign.com/com/v1/domain/KNOWYOURMEME.COM"},{"rel":"related","href":"https://rdap.godaddy.com/v1/domain/KNOWYOURMEME.COM","type":"application/rdap+json","value":"https://rdap.godaddy.com/v1/domain/KNOWYOURMEME.COM"}],"events":[{"eventDate":"2007-11-25T21:44:59Z","eventAction":"registration"},{"eventDate":"2026-11-25T21:44:59Z","eventAction":"expiration"},{"eventDate":"2024-10-17T18:04:44Z","eventAction":"last changed"},{"eventDate":"2025-07-06T17:38:38Z","eventAction":"last update of RDAP database"}],"handle":"1341613467_DOMAIN_COM-VRSN","status":["client delete prohibited","client renew prohibited","client transfer prohibited","client update prohibited"],"ldhName":"KNOWYOURMEME.COM","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/com/v1/domain/knowyourmeme.com"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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":"text/html","value":"https://rdap.verisign.com/com/v1/domain/knowyourmeme.com"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.godaddy.com","type":"text/html","value":"https://rdap.godaddy.com/v1/"}],"roles":["registrar"],"handle":"146","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:480-624-2505"],["email",{},"text","abuse@godaddy.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"146"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","GoDaddy.com, LLC"]]],"objectClassName":"entity"}],"secureDNS":{"delegationSigned":false},"nameservers":[{"ldhName":"NS11.CONSTELLIX.COM","objectClassName":"nameserver"},{"ldhName":"NS21.CONSTELLIX.COM","objectClassName":"nameserver"},{"ldhName":"NS31.CONSTELLIX.COM","objectClassName":"nameserver"},{"ldhName":"NS41.CONSTELLIX.NET","objectClassName":"nameserver"},{"ldhName":"NS51.CONSTELLIX.NET","objectClassName":"nameserver"},{"ldhName":"NS61.CONSTELLIX.NET","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
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graphicriver.netnetnetICANNHTTP 200104.18.41.37US{"youtube":["https://youtube.com/user/Envato"],"facebook":["https://facebook.com/envato"],"instagram":["https://instagram.com/envato"],"pinterest":["https://pinterest.com/envato"],"x-twitter":["https://twitter.com/envato"]}2026-05-11HSTS, Ruby, Stimulus, Cookiebot, RackCache, Cloudflare, Google Ads, Open Graph, Ruby on Rails, Google Analytics2026-06-01TRUE{"A":["104.18.41.37","172.64.146.219"],"NS":["emma.ns.cloudflare.com","fred.ns.cloudflare.com"],"SOA":{"mname":"emma.ns.cloudflare.com","retry":2400,"rname":"dns.cloudflare.com","expire":604800,"serial":2405335628,"minimum":1800,"refresh":10000},"TXT":["google-site-verification=dNmbZGvhDVMdvVBW3ArkYDY3uhfmPRWc_UHFJIiXDHg","v=spf1 -all","yandex-verification: c5e1c92cfff8f398"]}0.0000017375817,253,4002025-08-13RDAP2006-08-312027-08-312025-08-13MarkMonitor Inc.{"raw_response":{"links":[{"rel":"self","href":"https://rdap.verisign.com/net/v1/domain/GRAPHICRIVER.NET","type":"application/rdap+json","value":"https://rdap.verisign.com/net/v1/domain/GRAPHICRIVER.NET"},{"rel":"related","href":"https://rdap.markmonitor.com/rdap/domain/GRAPHICRIVER.NET","type":"application/rdap+json","value":"https://rdap.markmonitor.com/rdap/domain/GRAPHICRIVER.NET"}],"events":[{"eventDate":"2006-08-31T13:43:57Z","eventAction":"registration"},{"eventDate":"2027-08-31T13:43:57Z","eventAction":"expiration"},{"eventDate":"2025-07-30T10:20:44Z","eventAction":"last changed"},{"eventDate":"2025-08-13T16:09:15Z","eventAction":"last update of RDAP database"}],"handle":"575171151_DOMAIN_NET-VRSN","status":["client delete prohibited","client transfer prohibited","client update prohibited"],"ldhName":"GRAPHICRIVER.NET","notices":[{"links":[{"rel":"terms-of-service","href":"https://www.verisign.com/domain-names/registration-data-access-protocol/terms-service/index.xhtml","type":"text/html","value":"https://rdap.verisign.com/net/v1/domain/graphicriver.net"}],"title":"Terms of Service","description":["Service subject to Terms of Use."]},{"links":[{"href":"https://icann.org/epp","type":"text/html"}],"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":"text/html","value":"https://rdap.verisign.com/net/v1/domain/graphicriver.net"}],"title":"RDDS Inaccuracy Complaint Form","description":["URL of the ICANN RDDS Inaccuracy Complaint Form: https://icann.org/wicf"]}],"entities":[{"links":[{"rel":"about","href":"http://www.markmonitor.com","type":"text/html","value":"https://rdap.markmonitor.com/rdap/"}],"roles":["registrar"],"handle":"292","entities":[{"roles":["abuse"],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text",""],["tel",{"type":"voice"},"uri","tel:+1.2086851750"],["email",{},"text","abusecomplaints@markmonitor.com"]]],"objectClassName":"entity"}],"publicIds":[{"type":"IANA Registrar ID","identifier":"292"}],"vcardArray":["vcard",[["version",{},"text","4.0"],["fn",{},"text","MarkMonitor Inc."]]],"objectClassName":"entity"}],"secureDNS":{"dsData":[{"digest":"19AE4A987B2799F190F60DB1CD4C125F6EDBA8A71D67535615E8B0740870851D","keyTag":2371,"algorithm":13,"digestType":2}],"delegationSigned":true},"nameservers":[{"ldhName":"EMMA.NS.CLOUDFLARE.COM","objectClassName":"nameserver"},{"ldhName":"FRED.NS.CLOUDFLARE.COM","objectClassName":"nameserver"}],"objectClassName":"domain","rdapConformance":["rdap_level_0","icann_rdap_technical_implementation_guide_1","icann_rdap_response_profile_1"]}}Domain is active
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Showing 5 of 7,965 rows · Technologies · Full website tech stack per site — CMS, payments, analytics, frameworks.

+ 4 datasets don't carry the Technologies column.

The RackCache dataset

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

RackCache lives inside 2 datasets

RackCache detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 7,965-site list — or grab a free preview first.

See datasets ↓ Download free preview (20 rows)

Your RackCache downloads

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

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

API, columns & recipes → /account/api

Which websites are using RackCache?

webatla detects every site using RackCache and exports them as one downloadable list, so you can see who relies on this technology and what else runs alongside it.

Open the RackCache technology dataset to break adoption down by country and TLD, compare it with a competing technology, and track new domains over time.

Frequently asked questions

How many websites use RackCache?

webatla detects RackCache on 8K websites, refreshed daily — each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using RackCache?

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.

How do I find the websites using RackCache?

Buy the technology dataset, then download the complete list of domains we detect using RackCache — re-exported every day.

What else is in the RackCache technology data?

Each row places RackCache next to the other technology on the same site, plus DNS, WHOIS, IP, country and ranking.