New Zealand - search ability as well as ordering

https://www.bdmhistoricalrecords.dia.govt.nz/search

New South Wales - Click the Registry Index button

https://www.nsw.gov.au/family-and-relationships/family-history-search

Victoria

https://my.rio.bdm.vic.gov.au/efamily-history/6ac57fcd5300c39bcb694814

South Australia - this is a basic search and you will need to become a member of Genealogy SA for the full information

https://www.genealogysa.org.au/resources/online-database-search

Queensland

https://www.familyhistory.bdm.qld.gov.au/

Western Australia - this is the search screen and has links for ordering certificates

https://www.wa.gov.au/organisation/department-of-justice/online-index-search-tool

Tasmania - has many scanned images

https://librariestas.ent.sirsidynix.net.au/client/en_AU/names/search/results?

Northern Territory - is not online and you will need to contact the relevant office

https://nt.gov.au/law/bdm/births-deaths-and-marriages-office-contacts

England and Wales

https://www.gov.uk/research-family-history

Scotland

https://www.scotlandspeople.gov.uk/?utm_source=google&utm_medium=cpc&utm_campaign=SP%20-%20Oceania%20-%20Brand&gad_source=1&gad_campaignid=8150125881&gbraid=0AAAAADQFOY-xj--qGUy7dD0728BaZxqGD&gclid=Cj0KCQjwuJLWBhD_ARIsAIBcRUxl_OdMxCf6wTylP6S6Qv5Y7DpaZXPnsefmOYBAQjES_jKXyHsf-BcaArgiEALw_wcB

Ireland - you are able to use the following link to search records

https://www.irishgenealogy.ie/search/?church-or-civil=all&firstname=percy+&lastname=fitzpatrick&location=&yearStart=1790&yearEnd=1850&event-birth=1&_day=&month=&mothers-surname=&age-at-death=&relation-0=