Google's treatment of allow and disallow combined in robots.txt?

[naveen10]

My robots.txt file looks like below:

User-agent: Googlebot
Disallow: /service/
Allow: /service/seo.html

Will google crawl/index the SEO service page or not?

[phranque]

yes.

however:

A robotted page can still be indexed if linked to from from (sic) other sites
While Google won't crawl or index the content blocked by robots.txt, we might still find and index a disallowed URL if it is linked from other places on the web. As a result, the URL address and, potentially, other publicly available information such as anchor text in links to the page can still appear in Google search results. To properly prevent your URL from appearing in Google Search results, you should password-protect the files on your server or use the noindex meta tag or response header (or remove the page entirely).

(source:Understand the limitations of robots.txt [support.google.com])

[tangor]

robots.txt is a "request" it is not a "rule"... and only honorable bots will pay heed.

Just one of the tools in the box ... just the least effective for controlling bad actors. The good guys will honor ... but the rest are going to ignore it.

Look to .htaccess to control access as needed...

[shashankx10]

Yes it will index the services/seo page but if in future you need to index any other page under /service, then you have to put instructions in robots file manually.