Changes

! In List

! Not In List

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| Cookie-Setting

| com, appspot.com, co.uk

|

|-

| 'Responsible Domain' Highlighting/Browser History Sorting

| com, appspot.com, co.uk

|

|-

| Navigability

| com, co.uk

| appspot.com

|-

| SSL Wildcards

| com, co.uk

| appspot.com

|-

| TLD Validation in programming languages

| Numerous programming languages use the PSL to validate form entries or logic determining validity of TLDs where PSL is used to validate the rightmost apex of TLD.

| In this form value someone just submitted for the URL of their API, was the TLD valid?

|

|-

| Anti-Spam

| The rightmost apex of TLDs is reviewed for validity on return/sender addresses as a basic check, using match in PSL as initial pass/fail to reduce processing time.

| Should I quickly drop this email FROM: perp@scam.you if .you isn't in the list of TLDs?

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|-

| Whois or other TLD related client software

| com, co.uk

| appspot.com

|}