UPDATE Dec 6, 2024

Today I wrote AppSumo:
I purchased Tier4 for emaillistvalidation in Jan 2024.
I noticed a lot of downtime while using the API and started monitoring the site from April. Attached you will find around 399 checks with offline times. The tool and API is absolutely unusable and also provides partially incorrect results. This already damaged our business. Please take a look at the reviews on your portal. There are many very unhappy users. I would like to request a refund for Tier 4 and refer, among other things, to your one-year warranty for Plus members.
I will purchase REOON Verifier from you today and hope that you refund the amount for the really very poor tool Email List Validation and also remove it from your shop to protect all members, as this has already been demanded by users but has not happened.

BTW: Interesting that there was no reaction from emaillistvalidation on my original review and no reaction from support anyway...

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ORIGINAL REVIEW:

The email validation results are often incorrect. The support is poor or non-existent. I had bought a large package because I needed a lot of validations, but I prefer to pay for emaillistverify.com because the results are much better and the API doesn't fail all the time. Here is a list of outages from today that I am monitoring. app.emaillistvalidation.com is by far in last place of all website monitoring:

This is only a short part of the monitoring log file:

Nuremberg
11 Oct, 18:14 View Details
HTTP/1.1 408 Request Timeout

Nuremberg
11 Oct, 17:55 View Details
HTTP/1.1 408 Request Timeout

Nuremberg
11 Oct, 17:35 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 17:16 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 16:57 View Details 0.24 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 16:37 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 16:17 View Details 0.29 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 15:58 View Details 0.52 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 15:38 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 15:19 View Details 0.48 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 15:00 View Details 0.82 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 14:41 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 14:21 View Details 0.47 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 14:01 View Details 0.48 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 13:40 View Details 1.11 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 13:19 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 12:56 View Details 0.21 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 12:36 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 12:16 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 11:57 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 11:37 View Details 0.25 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 11:16 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 10:56 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 10:36 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 10:16 View Details 0.52 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 09:56 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 09:36 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 09:17 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 08:57 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 08:36 View Details 0.21 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 08:17 View Details 0.22 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 07:57 View Details 0.24 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 07:37 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 07:17 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 06:57 View Details 0.24 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 06:38 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 06:18 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 05:59 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 05:40 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 05:20 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 04:59 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 04:39 View Details 0.24 sec
HTTP/1.1 500 Internal Server Error

Nuremberg
11 Oct, 04:20 View Details 0.23 sec
HTTP/1.1 500 Internal Server Error