Codebreaking passcodes

A lot of Ingress posts on their blogs have passcodes for gear hidden in them. Investigate blog is one of them. Usually in the alt tag of an image.
https://ingress.codes/ is a website that posts the solutions for codes which have already been broken and fully redeemed.

I copy and paste the below into a new notepad++ and goto the http://investigate.ingress.com/ post and search for the below text in the source code.

alt=
span style="font-size: 1px;"
span style="visibility: hidden;"

number coding
ze zero
on one
tw two
th three
fo four
fi five
si six
se seven
ei eight
ni nine
te ten

atbash on numbers
1 –> 9
2 –> 8
3 –> 7
4 –> 6
5 –> 5
6 –> 4
7 –> 3
8 –> 2
9 –> 1
0 –> 0

Investigate keyword format
xxx##keyword###xx
(# are 2 to 9)

Tools

https://regex.ingress.codes/
^[9t7t8aptclotv4r7]{6}$ portal
^[te68o5erezim2tk8uf]{8}$ timezero

1234567890123456789012345678901234567890
1 2 3 4