CrawlDex
Check

Blocker report

Which websites block AI agents with two-factor checks that need the user present?

The site asks for a one-time code, device approval, or another second factor that only the account holder should complete.

Coverage

Search-ready
61
affected site-tasks
191
observations

Last verified Jun 16, 2026. Based on 191 observations.

What site owners can do instead

Offer a documented user-present checkpoint and make the next step clear once the account holder approves.

What agent builders should expect

Keep the user nearby for sign-in and resume only after the account holder completes the challenge.

Evidence-linked site-tasks

Affected websites and tasks

Site-taskAESConfidenceLast verifiedEvidence
My Clevelandclinic

healthcare_admin.book_appointment

41Low confidence, 4 observationsJun 16, 2026recipe://healthcare_admin.book_appointment/clevelandclinic-mychart/v1
Capitalone

finance_bills.update_autopay

46Low confidence, 2 observationsJun 16, 2026recipe://finance_bills.update_autopay/capitalone-setup-autopay/v1
Bankofamerica

finance_bills.dispute_charge

48Low confidence, 2 observationsJun 16, 2026recipe://finance_bills.dispute_charge/bofa-dispute-charge/v1
Zoom

subscriptions.request_refund

55Low confidence, 2 observationsJun 16, 2026recipe://subscriptions.request_refund/zoom-cancel-subscription/v1
Chase

finance_bills.download_statement

57Low confidence, 2 observationsJun 16, 2026recipe://finance_bills.download_statement/chase-paperless-statements/v1
Atlassian

business_ops.cancel_vendor

58Low confidence, 2 observationsJun 16, 2026recipe://business_ops.cancel_vendor/atlassian-cancel-subscription/v1
Tenantcloud

real_estate_moving.tenant_portal_lookup

60Low confidence, 4 observationsJun 16, 2026recipe://tenantcloud.com/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Slack

dev_saas_api.create_webhook

62Low confidence, 2 observationsJun 16, 2026recipe://dev_saas_api.create_webhook/slack-incoming-webhooks/v1
Spirit

travel.manage_flight_reservation

63Low confidence, 6 observationsJun 16, 2026recipe://spirit.com/travel.manage_flight_reservation/public-preflight-v1
Aeromexico

travel.manage_flight_reservation

65Low confidence, 3 observationsJun 16, 2026recipe://aeromexico.com/travel.manage_flight_reservation/public-preflight-v1
Aveloair

travel.manage_flight_reservation

65Low confidence, 4 observationsJun 16, 2026recipe://aveloair.com/travel.manage_flight_reservation/public-preflight-v1
Proof

legal_admin.online_notarization

65Low confidence, 3 observationsJun 16, 2026recipe://proof.com/legal_admin.online_notarization/public-preflight-v1
Realpage

real_estate_moving.tenant_portal_lookup

65Low confidence, 4 observationsJun 16, 2026recipe://realpage.com/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Amazon

subscriptions.cancel

66Low confidence, 3 observationsJun 16, 2026recipe://subscriptions.cancel/amazon-prime-cancel-news/v1
Adobe

subscriptions.cancel

67Low confidence, 3 observationsJun 16, 2026recipe://subscriptions.cancel/adobe-cancel-plan/v1
Jetblue

travel.manage_flight_reservation

67Low confidence, 5 observationsJun 16, 2026recipe://jetblue.com/travel.manage_flight_reservation/public-preflight-v1
Sce

real_estate_moving.transfer_utilities

67Low confidence, 2 observationsJun 16, 2026recipe://real_estate_moving.transfer_utilities/sce-start-stop-move/v1
Twilio

dev_saas_api.generate_api_key

68Low confidence, 2 observationsJun 16, 2026recipe://dev_saas_api.generate_api_key/twilio-api-keys/v1
Avail

real_estate_moving.tenant_portal_lookup

69Low confidence, 3 observationsJun 16, 2026recipe://avail.co/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Turbotenant

real_estate_moving.tenant_portal_lookup

69Low confidence, 3 observationsJun 16, 2026recipe://turbotenant.com/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Appfolio

real_estate_moving.tenant_portal_lookup

70Low confidence, 3 observationsJun 16, 2026recipe://appfolio.com/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Hawaiianairlines

travel.manage_flight_reservation

70Low confidence, 4 observationsJun 16, 2026recipe://hawaiianairlines.com/travel.manage_flight_reservation/public-preflight-v1
The New York Times

subscriptions.cancel

70Low confidence, 3 observationsJun 16, 2026recipe://nytimes.com/subscriptions.cancel/public-preflight-v1
Suncountry

travel.manage_flight_reservation

70Low confidence, 4 observationsJun 16, 2026recipe://suncountry.com/travel.manage_flight_reservation/public-preflight-v1
Virginatlantic

travel.manage_flight_reservation

70Low confidence, 3 observationsJun 16, 2026recipe://virginatlantic.com/travel.manage_flight_reservation/public-preflight-v1
Copaair

travel.manage_flight_reservation

72Low confidence, 3 observationsJun 16, 2026recipe://copaair.com/travel.manage_flight_reservation/public-preflight-v1
Flexmls

real_estate_moving.tenant_portal_lookup

72Low confidence, 3 observationsJun 16, 2026recipe://flexmls.com/real_estate_moving.tenant_portal_lookup/public-preflight-v1
Marriott

travel.manage_hotel_reservation

72Low confidence, 4 observationsJun 16, 2026recipe://marriott.com/travel.manage_hotel_reservation/public-preflight-v1
Emirates

travel.manage_flight_reservation

73Low confidence, 4 observationsJun 16, 2026recipe://emirates.com/travel.manage_flight_reservation/public-preflight-v1
Westjet

travel.manage_flight_reservation

73Low confidence, 3 observationsJun 16, 2026recipe://westjet.com/travel.manage_flight_reservation/public-preflight-v1
Youtube

subscriptions.cancel

73Low confidence, 2 observationsJun 16, 2026recipe://subscriptions.cancel/youtube-premium-cancel/v1
Aircanada

travel.manage_flight_reservation

74Low confidence, 4 observationsJun 16, 2026recipe://aircanada.com/travel.manage_flight_reservation/public-preflight-v1
Alaskaair

travel.manage_flight_reservation

74Low confidence, 3 observationsJun 16, 2026recipe://alaskaair.com/travel.manage_flight_reservation/public-preflight-v1
Delta

travel.manage_flight_reservation

74Low confidence, 4 observationsJun 16, 2026recipe://delta.com/travel.manage_flight_reservation/public-preflight-v1
Flyfrontier

travel.manage_flight_reservation

74Low confidence, 4 observationsJun 16, 2026recipe://flyfrontier.com/travel.manage_flight_reservation/public-preflight-v1
Southwest

travel.manage_flight_reservation

74Low confidence, 4 observationsJun 16, 2026recipe://southwest.com/travel.manage_flight_reservation/public-preflight-v1
AMC+

subscriptions.cancel

75Low confidence, 3 observationsJun 16, 2026recipe://amcplus.com/subscriptions.cancel/public-preflight-v1
Cloudflare

business_ops.download_invoices

75Low confidence, 2 observationsJun 16, 2026recipe://business_ops.download_invoices/cloudflare-invoices/v1
Apple

subscriptions.cancel

77Low confidence, 3 observationsJun 16, 2026recipe://subscriptions.cancel/apple-cancel-subscription/v1
Login

legal_admin.understand_gov_identity

77Low confidence, 4 observationsJun 16, 2026recipe://login.gov/legal_admin.understand_gov_identity/public-preflight-v1
Microsoft

subscriptions.cancel

77Low confidence, 3 observationsJun 16, 2026recipe://subscriptions.cancel/microsoft-365-cancel/v1
Todoist

subscriptions.cancel

77Low confidence, 3 observationsJun 16, 2026recipe://todoist.com/subscriptions.cancel/public-preflight-v1
Dropbox

subscriptions.downgrade

78Low confidence, 2 observationsJun 16, 2026recipe://subscriptions.downgrade/dropbox-downgrade-individual/v1
Linear

business_ops.update_seats

78Low confidence, 2 observationsJun 16, 2026recipe://business_ops.update_seats/linear-members-roles/v1
Audible

subscriptions.cancel

79Low confidence, 3 observationsJun 16, 2026recipe://audible.com/subscriptions.cancel/public-preflight-v1
Dropbox

subscriptions.cancel

79Low confidence, 4 observationsJun 16, 2026recipe://dropbox.com/subscriptions.cancel/public-preflight-v1
GitLab

subscriptions.cancel

79Low confidence, 3 observationsJun 16, 2026recipe://gitlab.com/subscriptions.cancel/public-preflight-v1
Grammarly

subscriptions.cancel

79Low confidence, 3 observationsJun 16, 2026recipe://grammarly.com/subscriptions.cancel/public-preflight-v1
Notion

subscriptions.cancel

79Low confidence, 4 observationsJun 16, 2026recipe://notion.com/subscriptions.cancel/public-preflight-v1
Zoom

subscriptions.cancel

79Low confidence, 3 observationsJun 16, 2026recipe://zoom.us/subscriptions.cancel/public-preflight-v1
LinkedIn

subscriptions.cancel

80Low confidence, 2 observationsJun 16, 2026recipe://linkedin.com/subscriptions.cancel/public-preflight-v1
Roku

subscriptions.cancel

81Low confidence, 3 observationsJun 16, 2026recipe://roku.com/subscriptions.cancel/public-preflight-v1
Sam

legal_admin.register_entity_uei

81Low confidence, 4 observationsJun 16, 2026recipe://sam.gov/legal_admin.register_entity_uei/public-preflight-v1
Apple TV

subscriptions.cancel

81Low confidence, 3 observationsJun 16, 2026recipe://tv.apple.com/subscriptions.cancel/public-preflight-v1
Uspto

legal_admin.trademark_search_and_file

81Low confidence, 4 observationsJun 16, 2026recipe://uspto.gov/legal_admin.trademark_search_and_file/public-preflight-v1
Duolingo

subscriptions.cancel

82Low confidence, 3 observationsJun 16, 2026recipe://duolingo.com/subscriptions.cancel/public-preflight-v1
Figma

subscriptions.cancel

82Low confidence, 3 observationsJun 16, 2026recipe://figma.com/subscriptions.cancel/public-preflight-v1
Hilton

travel.manage_hotel_reservation

82Low confidence, 3 observationsJun 16, 2026recipe://hilton.com/travel.manage_hotel_reservation/public-preflight-v1
Paramount+

subscriptions.cancel

82Low confidence, 3 observationsJun 16, 2026recipe://paramountplus.com/subscriptions.cancel/public-preflight-v1
Peacock

subscriptions.cancel

82Low confidence, 2 observationsJun 16, 2026recipe://peacocktv.com/subscriptions.cancel/public-preflight-v1
Slack

subscriptions.cancel

82Low confidence, 3 observationsJun 16, 2026recipe://slack.com/subscriptions.cancel/public-preflight-v1