Is "Substack Archive Search - Offline Post Indexer" on Chrome Web Store Safe to Install?
Substack Archive Search is the ultimate discovery tool for power users. It builds a local, searchable index of any publication, allowing you to bypass Substack's limited native search and find exactly what you need in seconds. Note: This extension is a search and discovery tool. It indexes archives to help you find posts; clicking a result will take you to the post on Substack.com to read. 🔍 Advanced Substack Search Engine. Native search can be slow and often misses older content. This extension creates a high-speed local database of a publication’s history. Instant Filtering: Sort by date, title, or relevance. Deep Indexing (Pro): Search the full-text content of every article, not just the headlines. 📂 Build a Personal Research Knowledge Base Perfect for journalists, academics, and researchers who need to track a writer’s specific mentions of topics over time. Metadata Indexing: Automatically captures author names, tweet-IDs, and publication dates. Offline Access: Browse your indexed search results even when you don’t have an internet connection. 🔒 Privacy-First Indexing Unlike web-based search tools, all indexing happens locally. No data is sent to a backend. Your search history stays on your machine. Compatible with custom Substack domains. ⚡ Optimized for Performance Built using IndexedDB, this extension can handle archives with thousands of posts without slowing down your browser. It’s the fastest way to turn a newsletter archive into a searchable library.
Risk Assessment
Analyzed358 security findings detected across all analyzers
Chrome extension requesting 4 permissions
Severity Breakdown
Finding Categories
YARA Rules Matched
9 rules(158 hits)Requested Permissions
4 permissionsAccess and modify data on every website you visit
Access your identity and sign-in tokens
About This Extension
Detailed Findings
160 totalYARA Rule Matches
9 rulesIndicators of Compromise
Network indicators, suspicious strings, and potential IoCs extracted during analysis
All Indicators · 193
detected Domain: i.data XIOC detected Domain: i.data
extracted_from_files
detected Domain: c2pa-ocsp.pki.goog XIOC detected Domain: c2pa-ocsp.pki.goog
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detected Domain: col.id XIOC detected Domain: col.id
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detected IP: e:: XIOC detected IP: e::
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detected IP: ::7 XIOC detected IP: ::7
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detected IP: 9:: XIOC detected IP: 9::
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detected IP: 8:: XIOC detected IP: 8::
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detected IP: ::8 XIOC detected IP: ::8
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detected IP: ::6 XIOC detected IP: ::6
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detected IP: :: XIOC detected IP: ::
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detected Domain: fp7.kp XIOC detected Domain: fp7.kp
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detected Domain: z.hu XIOC detected Domain: z.hu
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detected Domain: www.w3.org XIOC detected Domain: www.w3.org
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detected IP: 5:: XIOC detected IP: 5::
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detected URL: https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;800&display=swap XIOC detected URL: https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;800&display=swap
extracted_from_files
detected URL: https://buy.stripe.com/eVq8wPeICbwR3Nf3oh7Zu02' XIOC detected URL: https://buy.stripe.com/eVq8wPeICbwR3Nf3oh7Zu02'
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detected URL: https://hvyzdyjqepyeyshwxfqi.supabase.co'; XIOC detected URL: https://hvyzdyjqepyeyshwxfqi.supabase.co';
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detected URL: https://www.buymeacoffee.com/neocortex XIOC detected URL: https://www.buymeacoffee.com/neocortex
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detected URL: https://cdn.buymeacoffee.com/buttons/v2/default-violet.png XIOC detected URL: https://cdn.buymeacoffee.com/buttons/v2/default-violet.png
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detected URL: https://chromewebstore.google.com/publisher/neo-cortex-llc/u796c2dce8d71eb1062cca209ec50db80 XIOC detected URL: https://chromewebstore.google.com/publisher/neo-cortex-llc/u796c2dce8d71eb1062cca209ec50db80
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detected URL: https://fonts.googleapis.com XIOC detected URL: https://fonts.googleapis.com
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detected URL: https://fonts.gstatic.com XIOC detected URL: https://fonts.gstatic.com
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detected URL: https://clients2.google.com/service/update2/crx XIOC detected URL: https://clients2.google.com/service/update2/crx
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detected URL: https://developer.mozilla.org/en-US/docs/Web/API/LockManager/request XIOC detected URL: https://developer.mozilla.org/en-US/docs/Web/API/LockManager/request
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detected URL: http://localhost:9999 XIOC detected URL: http://localhost:9999
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detected URL: https://buy.stripe.com/6oUeVd7ga58t6Zr1g97Zu00', XIOC detected URL: https://buy.stripe.com/6oUeVd7ga58t6Zr1g97Zu00',
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detected URL: https://buy.stripe.com/dRm5kD0RM30l83v9MF7Zu01', XIOC detected URL: https://buy.stripe.com/dRm5kD0RM30l83v9MF7Zu01',
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detected URL: https://buy.stripe.com/eVq8wPeICbwR3Nf3oh7Zu02', XIOC detected URL: https://buy.stripe.com/eVq8wPeICbwR3Nf3oh7Zu02',
extracted_from_files
detected URL: https://buy.stripe.com/test_3cI9AV7Y58qBaPKcL8aMU00' XIOC detected URL: https://buy.stripe.com/test_3cI9AV7Y58qBaPKcL8aMU00'
extracted_from_files
detected URL: http://privateca-content-688aa673-0000-2a86-a87a-088bc873570a.storage.googleapis.com/b4fb604825ecc5c3ce6b/crl.crl0 XIOC detected URL: http://privateca-content-688aa673-0000-2a86-a87a-088bc873570a.storage.googleapis.com/b4fb604825ecc5c3ce6b/crl.crl0
extracted_from_files
detected URL: http://pki.goog/c2pa/root-g3.crt0& XIOC detected URL: http://pki.goog/c2pa/root-g3.crt0&
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detected URL: http://c2pa-ocsp.pki.goog/04 XIOC detected URL: http://c2pa-ocsp.pki.goog/04
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detected URL: http://pki.goog/c2pa/media-1p-ica-g3.crt0 XIOC detected URL: http://pki.goog/c2pa/media-1p-ica-g3.crt0
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detected URL: http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia XIOC detected URL: http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia
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detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns# XIOC detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns#
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detected URL: http://ns.adobe.com/tiff/1.0/ XIOC detected URL: http://ns.adobe.com/tiff/1.0/
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detected URL: http://ns.adobe.com/exif/1.0/ XIOC detected URL: http://ns.adobe.com/exif/1.0/
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detected URL: http://ns.adobe.com/xap/1.0/ XIOC detected URL: http://ns.adobe.com/xap/1.0/
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detected Domain: fonts.googleapis.com XIOC detected Domain: fonts.googleapis.com
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detected Domain: fonts.gstatic.com XIOC detected Domain: fonts.gstatic.com
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detected Domain: window.location.search XIOC detected Domain: window.location.search
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detected Domain: searchservice.search XIOC detected Domain: searchservice.search
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detected URL: http://www.w3.org/2000/svg XIOC detected URL: http://www.w3.org/2000/svg
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detected IP: 2:: XIOC detected IP: 2::
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detected IP: 7:: XIOC detected IP: 7::
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detected Domain: s.channel XIOC detected Domain: s.channel
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detected Domain: container.style.gap XIOC detected Domain: container.style.gap
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detected Domain: post.date XIOC detected Domain: post.date
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detected Domain: www.buymeacoffee.com XIOC detected Domain: www.buymeacoffee.com
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detected Domain: cdn.buymeacoffee.com XIOC detected Domain: cdn.buymeacoffee.com
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detected Domain: chromewebstore.google.com XIOC detected Domain: chromewebstore.google.com
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detected Domain: post.id XIOC detected Domain: post.id
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detected Domain: profile.is XIOC detected Domain: profile.is
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detected Domain: window.open XIOC detected Domain: window.open
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detected Domain: architecture.md XIOC detected Domain: architecture.md
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detected Domain: posts.map XIOC detected Domain: posts.map
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detected Domain: normalized.id XIOC detected Domain: normalized.id
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detected Domain: indexeddb.open XIOC detected Domain: indexeddb.open
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detected Domain: apipost.post XIOC detected Domain: apipost.post
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detected Domain: chrome.storage XIOC detected Domain: chrome.storage
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detected Domain: sessiondata.user.email XIOC detected Domain: sessiondata.user.email
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detected Domain: user.id XIOC detected Domain: user.id
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detected Domain: user.email XIOC detected Domain: user.email
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detected Domain: buy.stripe.com XIOC detected Domain: buy.stripe.com
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detected Domain: hvyzdyjqepyeyshwxfqi.supabase.co XIOC detected Domain: hvyzdyjqepyeyshwxfqi.supabase.co
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detected Domain: m.global XIOC detected Domain: m.global
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detected Domain: this.rest XIOC detected Domain: this.rest
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detected Domain: this.realtime.channel XIOC detected Domain: this.realtime.channel
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detected Domain: o.nc XIOC detected Domain: o.nc
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detected Domain: s.target XIOC detected Domain: s.target
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detected Domain: a.name XIOC detected Domain: a.name
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detected Domain: apipost.id XIOC detected Domain: apipost.id
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detected Domain: i.open XIOC detected Domain: i.open
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detected Domain: c.open XIOC detected Domain: c.open
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detected Domain: e.data XIOC detected Domain: e.data
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detected Domain: r.next XIOC detected Domain: r.next
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detected Domain: h.next XIOC detected Domain: h.next
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detected Domain: s.download XIOC detected Domain: s.download
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detected Domain: t.download XIOC detected Domain: t.download
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detected Domain: h.money XIOC detected Domain: h.money
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detected Domain: r.map XIOC detected Domain: r.map
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detected Domain: e.channel XIOC detected Domain: e.channel
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detected Domain: h.id XIOC detected Domain: h.id
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detected Domain: u.data XIOC detected Domain: u.data
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detected Domain: t.new XIOC detected Domain: t.new
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detected Domain: this.channels.map XIOC detected Domain: this.channels.map
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detected Domain: r.metas.map XIOC detected Domain: r.metas.map
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detected Domain: e.date XIOC detected Domain: e.date
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detected Domain: e.int XIOC detected Domain: e.int
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detected Domain: e.money XIOC detected Domain: e.money
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detected Domain: t.name XIOC detected Domain: t.name
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detected Domain: h.int XIOC detected Domain: h.int
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detected Domain: h.date XIOC detected Domain: h.date
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detected Domain: nav.style.gap XIOC detected Domain: nav.style.gap
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detected Domain: t.map XIOC detected Domain: t.map
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detected Domain: e.open XIOC detected Domain: e.open
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detected Domain: this.channel XIOC detected Domain: this.channel
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detected Domain: t.events XIOC detected Domain: t.events
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detected Domain: this.map XIOC detected Domain: this.map
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detected Domain: s.map XIOC detected Domain: s.map
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detected Domain: n.data XIOC detected Domain: n.data
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detected Domain: o.data XIOC detected Domain: o.data
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detected Domain: o.channel XIOC detected Domain: o.channel
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detected Domain: gmail.com XIOC detected Domain: gmail.com
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detected Domain: s.data XIOC detected Domain: s.data
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detected IP: 1:: XIOC detected IP: 1::
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detected Domain: e.email XIOC detected Domain: e.email
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detected Domain: r.new XIOC detected Domain: r.new
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detected Domain: e.page XIOC detected Domain: e.page
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detected Domain: c.total XIOC detected Domain: c.total
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detected Domain: e.id XIOC detected Domain: e.id
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detected Domain: r.name XIOC detected Domain: r.name
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detected Domain: i.storage XIOC detected Domain: i.storage
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detected Domain: this.storage XIOC detected Domain: this.storage
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detected Domain: this.name XIOC detected Domain: this.name
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detected Domain: object.prototype.hasownproperty.call XIOC detected Domain: object.prototype.hasownproperty.call
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detected Domain: l.next XIOC detected Domain: l.next
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detected Domain: e.name XIOC detected Domain: e.name
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detected Domain: date.now XIOC detected Domain: date.now
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detected Domain: object.prototype.propertyisenumerable.call XIOC detected Domain: object.prototype.propertyisenumerable.call
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detected Domain: t.data XIOC detected Domain: t.data
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detected Domain: clients2.google.com XIOC detected Domain: clients2.google.com
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detected Domain: 561758988804-ma81e1tnirtoa66kghfjr0quav89pchr.apps.googleusercontent.com XIOC detected Domain: 561758988804-ma81e1tnirtoa66kghfjr0quav89pchr.apps.googleusercontent.com
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detected Domain: substack.com XIOC detected Domain: substack.com
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detected Domain: substackcdn.com XIOC detected Domain: substackcdn.com
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detected Domain: sidebar.id XIOC detected Domain: sidebar.id
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detected Domain: togglebtn.id XIOC detected Domain: togglebtn.id
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detected Domain: developer.mozilla.org XIOC detected Domain: developer.mozilla.org
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detected Domain: i.mu XIOC detected Domain: i.mu
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detected Domain: y.gm XIOC detected Domain: y.gm
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detected Domain: ޛ.ye XIOC detected Domain: ޛ.ye
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detected Domain: kx.ki XIOC detected Domain: kx.ki
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detected Domain: n.cf XIOC detected Domain: n.cf
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detected Domain: pӯ.me XIOC detected Domain: pӯ.me
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detected Domain: w.be XIOC detected Domain: w.be
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detected Domain: b.rs XIOC detected Domain: b.rs
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detected Domain: zi.ad XIOC detected Domain: zi.ad
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detected Domain: n.ng XIOC detected Domain: n.ng
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detected Domain: qa.ae XIOC detected Domain: qa.ae
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detected Domain: q.cg XIOC detected Domain: q.cg
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detected Domain: vh.ba XIOC detected Domain: vh.ba
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detected Domain: u.kg XIOC detected Domain: u.kg
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detected Domain: τ.bi XIOC detected Domain: τ.bi
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detected URL: http://www.w3.org/1999/xlink XIOC detected URL: http://www.w3.org/1999/xlink
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detected Domain: pki.goog XIOC detected Domain: pki.goog
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detected Domain: privateca-content-688aa673-0000-2a86-a87a-088bc873570a.storage.googleapis.com XIOC detected Domain: privateca-content-688aa673-0000-2a86-a87a-088bc873570a.storage.googleapis.com
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detected Domain: c2pa.hash.data XIOC detected Domain: c2pa.hash.data
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detected Domain: 9.cx XIOC detected Domain: 9.cx
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detected Domain: i.nr XIOC detected Domain: i.nr
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detected Domain: v.je XIOC detected Domain: v.je
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detected Domain: v.kw XIOC detected Domain: v.kw
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detected Domain: h.vn XIOC detected Domain: h.vn
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detected Domain: m.pm XIOC detected Domain: m.pm
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detected Domain: 0.bf XIOC detected Domain: 0.bf
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detected Domain: ٨.rs XIOC detected Domain: ٨.rs
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detected Domain: m.mw XIOC detected Domain: m.mw
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detected Domain: y.to XIOC detected Domain: y.to
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detected Domain: sή.gb XIOC detected Domain: sή.gb
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detected Domain: m.cd XIOC detected Domain: m.cd
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detected Domain: 6.md XIOC detected Domain: 6.md
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detected Domain: 2.ba XIOC detected Domain: 2.ba
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detected Domain: 2w.ee XIOC detected Domain: 2w.ee
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detected Domain: pa.bz XIOC detected Domain: pa.bz
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detected Domain: 1l.ml XIOC detected Domain: 1l.ml
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detected Domain: c.km XIOC detected Domain: c.km
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detected Domain: ns.adobe.com XIOC detected Domain: ns.adobe.com
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detected Domain: d.gd XIOC detected Domain: d.gd
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detected Domain: t.ne XIOC detected Domain: t.ne
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detected Domain: a.la XIOC detected Domain: a.la
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detected Domain: p.et XIOC detected Domain: p.et
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detected Domain: c.ke XIOC detected Domain: c.ke
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detected Domain: x.gt XIOC detected Domain: x.gt
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detected Domain: n.my XIOC detected Domain: n.my
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detected Domain: 8.ga XIOC detected Domain: 8.ga
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detected Domain: ќ.ml XIOC detected Domain: ќ.ml
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detected Domain: f.et XIOC detected Domain: f.et
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detected Domain: n.cr XIOC detected Domain: n.cr
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detected Domain: 1.gd XIOC detected Domain: 1.gd
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detected Domain: q߆.bf XIOC detected Domain: q߆.bf
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detected Domain: f.bm XIOC detected Domain: f.bm
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detected Domain: u.aq XIOC detected Domain: u.aq
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detected Domain: v.ly XIOC detected Domain: v.ly
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detected Domain: ܞz.io XIOC detected Domain: ܞz.io
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detected Domain: t.nu XIOC detected Domain: t.nu
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detected Domain: d.tt XIOC detected Domain: d.tt
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detected Domain: wߠ.it XIOC detected Domain: wߠ.it
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detected Domain: f.jm XIOC detected Domain: f.jm
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detected Domain: w.sk XIOC detected Domain: w.sk
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detected Domain: f.cl XIOC detected Domain: f.cl
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detected Domain: xn.hk XIOC detected Domain: xn.hk
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detected Domain: cv.iptc.org XIOC detected Domain: cv.iptc.org
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detected Domain: t.id XIOC detected Domain: t.id
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Security Analysis Summary
Security Analysis Overview
Substack Archive Search - Offline Post Indexer is a Chrome Web Store extension published by [email protected]. Version 1.0.2 has been analyzed by the Risky Plugins security platform, receiving a risk score of 97.25/100 (CRITICAL risk) based on 358 security findings.
Risk Assessment
This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.
Findings Breakdown
- Medium: 200 finding(s)
- Low: 158 finding(s)
What Was Analyzed
The security assessment covers multiple analysis categories:
- Malware Detection: YARA rule matching against 2,400+ malware signatures
- Secret Detection: Scanning for exposed API keys, tokens, and credentials
- Static Analysis: Code-level security analysis for common vulnerability patterns
- Network Analysis: Detection of suspicious network communications and endpoints
- Obfuscation Detection: Identification of code obfuscation techniques
Developer Information
Substack Archive Search - Offline Post Indexer is published by [email protected] on the Chrome Web Store marketplace. The extension has approximately 50 users.
Recommendation
This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.
Source Code Not Available
Source code is not available for this version of the extension.
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