Check DNS, Urls + Redirects, Certificates and Content of your Website

Info: Problems with 3.048.289 Letsencrypt certificates (378.325 accounts). They must be revoked (revocation starts 2020-03-04 20:00 UTC) - see Revoking certain certificates on March 4. Update 2020-03-07: Good news: Mass-revocation is canceled.

This tool: A check (SerialNumber) is added. Letsencrypt has published a list of critical SerialNumbers, this list is checked. See the part "9. Certificates". If there is a warning, renew that certificate and replace the current certificate.

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∑

A+

174

A

1116

B

no HSTS, unsecure Cookies

2912

C

Many http status 200

1787

D

redir http ⇒ http

248

E

http ⇒ https other domain

1981

F

318

H

2354

I

Content problems

4713

J

General Configuration

435

K

ip addresses with diff. status

42

L

646

M

Misconfiguration

1664

N

Certificate not trusted

21431

O

1472

P

Tls-Protocol error

1090

Q

http sent over port 443

1280

R

redir non existing domain

222

S

Server error (500)

2142

T

10959

U

Unknown - no dns / wrong IDN

2788

V

Connect failure

9402

W

wrong Web-Response

1907

X

DNS-problem Nameserver

4705

Y

1030

Z

private, tld not in PSL

885

⁕

1

⁂

Queue

0

#

error

0

started

2018-10-27

528 days

Domains

147.17 / day

77,705

last 24 h

Dom./Checks

518/671

Checks

236.09 / day

124,657

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