smartway to get backlinks

<?php
/*
 * By Dacash
 * 
 */
$your_url = "http://yourdomain.com";

$url = "http://adquants.com/domain_data.php?search_value=[URL]
http://careerdomino.com/ [URL]
http://digg.com/search?sort=newest&fltdigg=o50&s=site:[URL]
http://domainsearch101.com/domainsearch/[URL]
http://finance.mixx.com/ [URL]
http://hindi.avadhwebs.com/website/[URL]
http://hosts-file.net/default.asp?s=[URL]
http://iowa.mixx.com/ [URL]
http://lyfc.org/ [URL]
http://netvaluer.com/show.asp?site=[URL]
http://online.htmlvalidator.com/php/onlinevallite.php?url=[URL]
http://page2rss.com/page?url=[URL]
http://searchanalytics.compete.com/site_referrals/[URLNOW]
http://siteanalytics.compete.com/[URL]/?metric=uv
http://snapshot.compete.com/[URL]
http://thebusinessmanagement.co.cc/ [URL]
http://thevine.glenmarchurch.org/ [URL]
http://uptime.netcraft.com/up/graph?site=[URL]
http://whois.domaintools.com/[URL]
http://whois.tools4noobs.com/info/[URLNOW]
http://whois.ws/whois-info/ip-address/[URL]/
http://whoisx.co.uk/[URLNOW]
http://wholinkstome.com/url/[URL]
http://www.aboutdomain.org/backlinks/[URL]/
http://www.aboutus.org/[URL]
http://www.alexa.com/data/details/?url=[URL]
http://www.alexa.com/data/details/traffic_details/[URL]
http://www.alexa.com/siteinfo/[URL]/
http://www.alexaholic.com/siteinfo/[URL]
http://www.b2bpro.org/search.php?q=[URL]
http://www.backlinkcheck.com/popular.pl?url1=[URL]
http://www.builtwith.com/?[URL]
http://www.careermag.com/ [URL]
http://www.comdurav.com/ip-domain.php?domain=[URL]
http://www.cqcounter.com/whois/domain/[URL].html
http://www.cubestat.com/[URL]
http://www.cuge.org/check.php?site=[URL]
http://www.directoryofrecruiters.com/ [URL]
http://www.esitestats.com/[URL]
http://www.feedest.com/feedHost.cfm/host/[URL]
http://www.folkd.com/url/[URL]
http://www.interviewod.com/directory/new/ [URL]
http://www.ip-adress.com/reverse_ip/[URL]
http://www.jobfinderadvisory.com/ [URL]
http://www.jobs1st.com/ [URL]
http://www.keywordspy.co.uk/overview/domain.aspx?q=[URL]
http://www.keywordspy.com/ppc/domain.aspx?q=[URL]
http://www.lifemogul.com/ [URL]
http://www.lifemogul.com/tag/tips/ [URL]
http://www.links2mysite.com/links/[URL]
http://www.markosweb.com/www/[URL]/
http://www.metacafe.com/tags/related:[URL]/
http://www.pageheat.com/heat/[URL]
http://www.philrecruit.com/ [URL]
http://www.protectwebform.com/stats/site.php?d=[URL]
http://www.protect-x.com/info/[URL]
http://www.psicolaboral.com.ar/ [URL]
http://www.quantcast.com/[URL]
http://www.quarkbase.com/show/[URL]
http://www.realestatebestjobs.com/ [URL]
http://www.recruiterredbook.com/ [URL]
http://www.reddit.com/domain/[URL]
http://www.robtex.com/dns/[URL].html
http://www.semrush.com/info/[URL]
http://www.serpanalytics.com/sites/[URL]
http://www.similarsites.com/sites-like/[URL]
http://www.siteadvisor.cn/sites/[URL]/summary/
http://www.siteadvisor.com/sites/[URL]/summary/
http://www.snifflet.com/[URL]
http://www.statbrain.com/[URL]
http://www.surcentro.com/en/info/[URL]
http://www.tagurls.com/url/[URL]
http://www.urladex.com/url/[URL]
http://www.urlashare.com/url/[URL]
http://www.valuatemysite.com/[URL]
http://www.websiteoutlook.com/[URL]
http://www.webtrafficagents.com/WebSiteValue/[URL]
http://www.whatismyip.com.np/whois/[URL]
http://www.who.is/whois-com/[URL]
http://www.whoisbucket.com/view/[URL]
http://www.whoisya.com/[URL]
http://www.wikifox.de/[URL]
http://www.xmarks.com/site/[URL]/
http://www.zimbio.com/search?q=[URL]&btnG=Search";
$url = str_replace(" ", "",trim($url));
$url = split("\n", $url);

foreach($url as $do){
    $do = str_replace("[URL]", $your_url, $do);
    echo file_get_contents($do);
    
}

?>