It uses data released weekly by the Ministry of Health to allow people to click each SA2 (statistical area 2), showing its name and the percentage of residents who've received dose 1 and 2.
Each SA2 is coloured by the number of people remaining to get double-vaxed and once the target of 0 in an SA2 is reached, that SA2's shading is removed.
In a statement today, Steve Critchlow, the group managing director of NationalMap Ltd creators Critchlow Geospatial, said the map had been updated to show we're another week closer to reaching our 90 percent target.
"Now we have 38 SA2 polygons that have cleared the 90 percent target, 14 more than last week (although the eligible population data could be dubious in newly developed areas)," he said.
In Auckland the areas that have hit 90 percent include Ormiston East, Glendowie North, Victoria Park, and the Symonds Street area.
However Critchlow noted there are still "lots of blue areas" in areas such as Napier, Hastings, Bay of Plenty, and Auckland.
For example, on Wednesday 20 October the map showed just 26 percent of residents from the Whaktāne town of Murupara are fully vaccinated against COVID-19.
One week later, on Wednesday 27 October, this had only slightly improved to 28 percent.
"Next week's map should be quite different as more second doses are due to be administered," Critchlow added.