Strange Greek punycode?

[mulligan]

Names taken from Namepros

Example:
ταινίες.net - films.net --> Punycode --> xn--kxadnou2bb (According to blue rider and domainsite)

Now, if you enter the punycode back into blue rider or domainsite it is returning the unicode as --> ταινίεσ.net.
It is changing the last letter ς to an σ

Essentially it is returning the same punycode for ταινίες.net and ταινίεσ.net

Same for
διακοπέσ.net --> Punycode is xn--ixahiug4ahz
διακοπές.net --> Punycode is xn--ixahiug4ahz

These return vastly different google results...

These two letters share the same punycode:
ς --> xn--4xa
σ --> xn--4xa

Whats up with that?

[Rubber Duck]

Well as it the punycode you are registering, you would appear to be getting two for the price of one!

This doesn't seem to be a DS problem. If you try Verisign, same results:

http://mct.verisign-grs.com/conversiontool/convertServlet?input=%CE%B4%CE%B9%CE%B1%CE%BA%CE%BF%CF%80%CE%AD%CF%82&type=UTF8

[mulligan]

Only thing is it is showing up in my account as the least popular name!

xn--ixahiug4ahz is showing as διακοπέσ instead of διακοπές

Google for διακοπέσ --> 92
Google for διακοπές --> 1,303,000

Guess which one is showing up!

[Rubber Duck]

Only thing is it is showing up in my account as the least popular name!

xn--ixahiug4ahz is showing as διακοπέσ instead of διακοπές

Google for διακοπέσ --> 92
Google for διακοπές --> 1,303,000

Guess which one is showing up!

Probably doesn't matter if the popular one resolves OK!

[yanni]

Check the Namepros thread for answer.
It has been covered here in the past as well.

[mulligan]

Thanks yanni

[Rubber Duck]

If there is something useful to share could you summarise it here?

[yanni]

Yes, basically the "ς" is the sigma "σ" at the end of a word. When regging a Greek domain that ends in "s" you get both versions treated as the same, even though the correct spelling version is with the "ς".

The capital version of both s's is "Σ"

A Greek would never type the σ at the end of a word, except by mistake, since on the english keyboard the "σ" falls on the english "s", and someone switching back and forth could easily hit the key.

All in all, nothing to worry about even though Domaisite shows you having the incorrect version.

[bramiozo]

My punyconverter gives;

διακοπέσ.net -xn--ixahiug4ahz.net
διακοπές.net -xn--ixahiug4ahr.net

ς - xn--3xa
σ - xn--4xa

ταινίες.net - xn--kxadnou6ai.net

[Rubber Duck]

My punyconverter gives;

διακοπέσ.net -xn--ixahiug4ahz.net
διακοπές.net -xn--ixahiug4ahr.net

ς - xn--3xa
σ - xn--4xa

ταινίες.net - xn--kxadnou6ai.net

It maybe that you need to update Unicode Tables once in a while?

[bramiozo]

It maybe that you need to update Unicode Tables once in a while?

The standards haven't changed and I doubt that the several punyconverters I have tried are linked to a table that is regularly updated. It translates the punycodes into the correct unicode, but not vice versa so it seems.

[mulligan]

I cant seem to find a whois for διακοπές.net -xn--ixahiug4ahr.net even though it is showing as 'Taken' (I have registered διακοπέσ.net -xn--ixahiug4ahz.net)
So is this a case similar to the Chinese variant or am I not using a decent whois tool?

[Armadillo]

I ran into this with my term xn--qxaegecap4c9d.com (ελληνικόσ.com) : Greek
in Greek.

to get the punycode listed above I typed in ελληνικός:

Description Type Result
Input String UTF8 ελληνικός
Prepared String RACE bq--ao23xo5xxw43vtgd
Prepared String PUNYCODE xn--qxaegecap4c9d

What happens is that in the greek language the sigma character changes from ς to σ when another character follows the sigma, so when you add the .com it makes the sigma change from ς to the σ to be gramatically correct. The punycode is therefore mapped to both forms of the character and the word.

Armadillo

[yanni]

What happens is that in the greek language the sigma character changes from ς to σ when another character follows the sigma, so when you add the .com it makes the sigma change from ς to the σ to be gramatically correct. The punycode is therefore mapped to both forms of the character and the word.

Armadillo

In Modern Greek the sigma is the σ.
This changes to ς when it appears at the end of a word. This is called the "ending sigma" or "τελικό σίγμα" which also happens to be the original Ancient Greek sigma.

Both sigma's capital is Σ, hence the mapping, I believe.

[bramiozo]

That's probably correct but now I have to change the mapping in the puny-converter....

[Armadillo]

Yanni, that is correct. What I was trying to emphasize was that your idn will show the σ since you added the .com after it which will make it appear you have the less popular form of the word which is not the case since you have both forms mapped to the idn.


Armadillo

[bramiozo]

I updated my puny-converter, it seems to check out now.

[ctc]

Names taken from Namepros

These two letters share the same punycode:
ς --> xn--4xa
σ --> xn--4xa

Whats up with that?

Yes Like Yannis explained ealier the "ς" is the sigma "σ" at the end of a word.

Both Resolve the same to domains . two in one :)

Goto www.σ.com and www.ς.com and www.Σ.com they all resolve the same (www.xn--4xa.com)