Mottingham 4 August 1585: The cause of the incident, referred to as a "marvellous accident" at the time, was then unknown, and it is likely that a sinkhole had developed. The area is well coursed with streams, both above and below ground, and the collapse or shifting of subsoil might be attributed to them. The site of the sinkhole is now unknown, and the incident is also largely unknown. The only body of standing water that is in the area today is a lake at The Tarn Bird Sanctuary. In the NW corner of The Tarn opposite Mottingham Station is an
DNS sinkhole DNS sinkhole A DNS sinkhole, also known as a sinkhole server, Internet sinkhole, or Blackhole DNS is a DNS server that gives out false information, to prevent the use of a domain name. A sinkhole is a DNS provider that supplies systems looking for DNS information with false results, allowing an attacker to redirect a system to a potentially malicious destination. DNS sinkholes have also historically been used for non-malicious purposes. When a computer visits a DNS source to resolve a domain name, the provider will give a result if possible, and if not, it will send the resolution system