All-in-one free web application security tool. Web application vulnerability and privacy scanner with support for HTTP cookies, Flash, HTML5 localStorage, sessionStorage, CANVAS, Supercookies, Evercookies. Includes a free SSL/TLS, HTML and HTTP vulnerability scanner and URL malware scanner.
NEL
HTTP headerMost popular variants of the header value (we only show this when there's just a bunch of variants):
{"report_to": "network-errors", "max_age": 315360…
{"report_to":"default","max_age":2592000,"include…
{"report_to": "network-errors", "max_age": 600, "…
{"report_to":"default","max_age":2592000,"include…
{"report_to":"default","max_age": 604800,"include…
{"report_to":"network-errors","max_age":604800,"s…
{"report_to": "default", "max_age": 2592000}`);
{"report_to":"network-errors","max_age":0}
{"report_to":"default","max_age":600,"include_sub…
{"report_to":"telemetry","max_age":7776000,"inclu…
{"report_to":"NelOfficeUpload1","max_age":86400,"…
{"report_to": "network-errors", "max_age": 3600}
{ "report_to: "csp-violation", "max_age": 3153600…
{"report_to":"default","max_age":31536000,"includ…
{"report_to": "network-errors", "max_age": 1, "su…
{"report_to":"report-endpoint","max_age":31536000…
{"report_to":"reporturi","max_age":31536000,"incl…
{"report_to":"default","max_age":10886400}
{"report_to":"nel","max_age":604800,"success_frac…
{"report_to":"cf-nel","max_age":31536000,"success…
{'report_to':'default','max_age':31536000,'includ…
{"failure_fraction":1,"include_subdomains":false,…
{"report_to":"default","max_age":3600,"include_su…
{"report_to":"cf-nel","max_age":604800}
{"report_to":"default","max_age":31536000,"includ…
{"max_age":600,"report_to":"default"}
{"report_to":"default","max_age":86400,"include_s…
{"report_to":"network-errors","max_age":2592000,"…
{"report_to":"network-errors","max_age":604800,"s…
{"report_to":"default","max_age":2592000,"include…
{"report_to": "network-errors", "max_age": 86400,…
{"report_to": "nel", "max_age": 10886400}
{"report_to":"network-errors","max_age":1296000,"…
{"report_to":"default","max_age":604800,"include_…
{"max_age": 1}
{"report_to":"default","max_age":360,"include_sub…
{"report_to":"network-errors","max_age":2592000,"…
{'report_to':'default','max_age': 86400,'include_…
{"report_to":"network-errors","max_age":2592000,"…
{\"report_to\":\"default\",\"max_age\":31536000,\…
{"report_to":"default","max_age":2592000,"include…
{"report_to":"network-errors","max_age":86400,"su…
Network Error Logging (NEL) defines a mechanism enabling web applications to declare a reporting policy that can be used by an user agent to report network errors for a given origin.
We have seen 332 websites setting the
NEL
HTTP header and 42 unique values of this header.
{"report_to":"default","max_age":600,"include_subdomains":true,"failure_fraction":0.01}
{"report_to":"default","max_age":2592000,"include_subdomains":true,"failure_fraction":0.01}
{"report_to":"network-errors","max_age":1296000,"success_fraction":0.00066,"failure_fraction":1,"include_subdomains":true}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"default","max_age":86400,"include_subdomains":true}
{"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
{"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"network-errors","max_age":0}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"network-errors","max_age":2592000,"failure_fraction":0.01,"success_fraction":0.0001}
{"report_to":"default","max_age":10886400}
{"report_to": "nel", "max_age": 10886400}
{"report_to":"default","max_age":31536000,"include_subdomains":true}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"network-errors","max_age":1296000,"success_fraction":0.00066,"failure_fraction":1,"include_subdomains":true}
{"report_to":"cf-nel","max_age":604800}
{"max_age": 1}
{"report_to":"cf-nel","max_age":604800}
{"report_to":"default","max_age":2592000,"include_subdomains":true}
{"report_to":"telemetry","max_age":7776000,"include_subdomains":true,"failure_fraction":1.0}
{"report_to":"telemetry","max_age":7776000,"include_subdomains":true,"failure_fraction":1.0}