w3c validator has blocked my dev site "Excessive traffic pattern blocked"

To whom it may concern,

I noticed that last night that my dev site was being block by the
validator. The message is below.

Sorry! This document can not be checked.*Excessive traffic pattern blocked*

Due to excessive traffic we are blocking a pattern from specific browser
plugins. If you are using a browser plugin that checks every single page
you visit, please discontinue using it and only use selectively.

Please use the form interface on the Validator Home
Page<http://validator.w3.org/> to
check the page by URL.



a few thoughts here: it's not my browser plugins; i got the same response
trying other browsers. it is my dev site's url; i tried to validate from
another url i own, success!

how can i get my dev site off this list? i don't consider anything that i'm
doing out of the ordinary....i do validate a lot, but nothing i would
consider excessive. furthermore, i've been doing the same thing for the
past five years. actually, if anything's changed, i use the validator less
than i used to.

how did my dev site url get on the list in the first place? was i really
being an "overly aggressive validator"?

i do have some plugins, but nothing validating every document that's
requested.

i can get by without it, but i would rather not. such a life saver, the
validator is! i can't even begin to express what a blessing the validator
is; how many times it's saved my butt, etc.

any help is extremely appreciated.

cheers,

J. Albert Bowden II