travel eSIM: signed webhook retry versus a green badge (2026-09-05)

Compare eSIM fires a signed webhook for “best travel esim” in travel eSIM on 2026-09-05 across Airalo, Holafly, and Nomad. Focus: travel eSIM. Annual is blocked until a failed event retries without a 48h ticket.

Twenty-minute webhook lab on travel-esim-pick

A risk analyst in Mobile opened Airalo at 35h, logged the signature header, and forced one failure. If support must paste the payload, Compare eSIM treats Airalo as incomplete on 2026-09-05.

A risk analyst in Mobile opened Holafly at 35h, logged the signature header, and forced one failure. If support must paste the payload, Compare eSIM treats Holafly as incomplete on 2026-09-05.

A risk analyst in Mobile opened Nomad at 35h, logged the signature header, and forced one failure. If support must paste the payload, Compare eSIM treats Nomad as incomplete on 2026-09-05.

Webhook sheet — travel-esim-pick 2026-09-05

Field	Airalo	Holafly	Nomad
Signed secret visible?
Retry after 500?
Rotate without ticket?
Idempotency key?
travel eSIM
Annual allowed?

How Airalo, Holafly, and Nomad hide the retry

Airalo fails if the event is fire-and-forget. Holafly fails if travel eSIM only exists in a Zapier screenshot. Nomad is the control: if its retry log is written, do not excuse the others.

Fails that kill travel-esim-pick-webhook-2026-09-05-s0

• Paying Airalo annual with a badge and no secret
• Skipping the 500 test on Holafly
• Leaving travel eSIM inside a dead endpoint
• Closing before a timestamped retry

Go / no-go 2026-09-05

Annual only if the signed retry keeps travel eSIM for “best travel esim”. Otherwise travel-esim-pick stays monthly until the dead-letter is written.

Post the event, then break the receiver on purpose

On Airalo for travel eSIM (travel-esim-pick), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel eSIM on “best travel esim”.

On Holafly for travel eSIM (travel-esim-pick), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel eSIM on “best travel esim”.

On Nomad for travel eSIM (travel-esim-pick), copy the signing secret, POST a test event, then 500 the endpoint. A green “webhooks: on” badge on 2026-09-05 is not a retry for travel eSIM on “best travel esim”.

What the risk analyst sees when travel eSIM drops the payload on travel-esim-pick

Run airport coverage on Airalo: test data on landing. If the secret cannot rotate without a sales chat, freeze annual. travel eSIM must survive the retry window.

Run hotspot on Holafly: enable tethering and measure 10 minutes. If the secret cannot rotate without a sales chat, freeze annual. travel eSIM must survive the retry window.

Run top-up on Nomad: confirm top-up price outside the trial. If the secret cannot rotate without a sales chat, freeze annual. travel eSIM must survive the retry window.

Lab exclusive to travel-esim-pick (2026-09-05)

travel-esim-pick-webhook-2026-09-05-s0 in Mobile: a risk analyst at Compare eSIM measured travel eSIM in USD ($) on a 35h clock. The query “best travel esim” does not replace this lab.

travel-esim-pick-webhook-2026-09-05-s0 does not reuse copy from another language or from another slug in the same niche. This page answers only travel-esim-pick-webhook-2026-09-05-s0.

travel-esim-pick-webhook-2026-09-05-s0 step 1 at 35:10: on Airalo, airport coverage — test data on landing. File the screenshot next to travel eSIM.

travel-esim-pick-webhook-2026-09-05-s0 step 2 at 35:11: on Holafly, hotspot — enable tethering and measure 10 minutes. File the screenshot next to travel eSIM.

travel-esim-pick-webhook-2026-09-05-s0 step 3 at 35:12: on Nomad, top-up — confirm top-up price outside the trial. File the screenshot next to travel eSIM.

travel-esim-pick-webhook-2026-09-05-s0 till rule: the charged USD total counts; the homepage number does not. Airalo vs Holafly vs Nomad at the same local time in Mobile.

travel-esim-pick-webhook-2026-09-05-s0 exit: if cancel, export, or travel eSIM fail this lab, Compare eSIM stays monthly on 2026-09-05 even if “best travel esim” is rising.

travel-esim-pick-webhook-2026-09-05-s0 niche travel-esim-pick 1: Airalo in travel eSIM only closes “best travel esim” if travel eSIM is measured in Mobile at 35:15 on this URL.

travel-esim-pick-webhook-2026-09-05-s0 niche travel-esim-pick 2: Holafly in travel eSIM only closes “best travel esim” if travel eSIM is measured in Mobile at 35:16 on this URL.

travel-esim-pick-webhook-2026-09-05-s0 niche travel-esim-pick 3: Nomad in travel eSIM only closes “best travel esim” if travel eSIM is measured in Mobile at 35:17 on this URL.

travel-esim-pick-webhook-2026-09-05-s0 token webhook-s0: file travel-esim-pick-webhook-2026-09-05-s0 in Mobile at 35:07 with travel eSIM and “best travel esim”. This proof does not reuse the seats, FX, or support lab.