# Hubspot is adding \_\_hstc= parameter to external urls **URL:** \ **Category:** APIs & Integrations\ **Created:** [March 29, 2017, 7:25pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680 "2017-03-29T19:25:40Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![system](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/system/32/124_2.png) [@system](https://community.hubspot.com/u/system)\ **Post date:** [March 29, 2017, 7:25pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/1 "2017-03-29T19:25:40Z")
**We are using React for Server Side rendering.** Hubspot is adding ?\_\_hstc=104275039.d804df69846ddd42e6beb809e499e579.1438824980727.1439163429713.1439166480698.21&\_\_hssc=104275039.1.1439166480698&\_\_hsfp=2721133399 due to this server and client HTML render is different and checksum is not matching. Can you please help me in solving this issue. This is impacting the benefit of Server side rendering. [ ![](https://d2qpr2jzcazej7.cloudfront.net/original/3X/c/7/c77b0a84ca591eee41aeb2917e04143516c1ae90.png) Screen Shot 2017-03-23 at 9.42.16 PM.png1842x888 426 KB ]([https://community.hubspot.com/legacyfs/online/uploads/default/original/2X/2/2851f39687ae3766fa3e4f15ae84afe17791531c.png](https://community.hubspot.com/legacyfs/online/uploads/default/original/2X/2/2851f39687ae3766fa3e4f15ae84afe17791531c.png)) ---
**Author:** ![Dadams](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/dadams/32/21752_2.png) [@Dadams](https://community.hubspot.com/u/Dadams)\ **Post date:** [March 29, 2017, 10:11pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/2 "2017-03-29T22:11:02Z")
Hi [@pankajonerent](https://community.hubspot.com/u/pankajonerent) Those parameters are added by the cross-domain tracking feature of our tracking code. If you’re not using multiple distinct domains for your site (subdomains wouldn’t count, since our cookies are set at the root domain), you can disable that feature from your Reports Settings. ![](https://d2qpr2jzcazej7.cloudfront.net/original/3X/2/3/23ea0ff39f94745d32876853337d2fc1c4039be4.png) [knowledge.hubspot.com](https://knowledge.hubspot.com/articles/kcs_article/settings/can-i-track-multiple-domains-with-hubspot) ![reports_settings_external_domain.png#keepProtocol.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/7/e/7ee7bb5c18219967cbc92451014d2bd7322603a8.png) ### [How do I track multiple domains with HubSpot?](https://knowledge.hubspot.com/articles/kcs_article/settings/can-i-track-multiple-domains-with-hubspot) You can set up cross-domain tracking to ensure that the same tracking cookie is used across your tracked domains. ---
**Author:** ![TAwesomeThing](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/tawesomething/32/197564_2.png) [@TAwesomeThing](https://community.hubspot.com/u/TAwesomeThing)\ **Post date:** [January 28, 2023, 4:15pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/3 "2023-01-28T16:15:56Z")
It is likely that a previous owner of the website clafma , who is no longer in control of it, had an account with hubspot. I would greatly appreciate any assistance in removing this parameter from my website’s URLs, as it is causing problems with Google indexing and crawling. The website has been around for 22 years and has had multiple owners over the years, so it’s possible that the previous owner added the site to hubspot without my knowledge. Thank you in advance for your help ---
**Author:** ![TBirch](https://avatars.discourse-cdn.com/v4/letter/t/b77776/32.png) [@TBirch](https://community.hubspot.com/u/TBirch)\ **Post date:** [September 23, 2024, 5:09pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/4 "2024-09-23T17:09:50Z")
I am just wondering if you ever found a solution to this as I am having the same issue. I have turned off the cross domain tracking and this is impacting the indexing and crawling of our site as the url issue is getting worse rather than better since it has been turned off. ---
**Author:** ![KPanchal](https://avatars.discourse-cdn.com/v4/letter/k/67e7ee/32.png) [@KPanchal](https://community.hubspot.com/u/KPanchal)\ **Post date:** [August 31, 2023, 3:19pm UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/5 "2023-08-31T15:19:56Z")
Even we have stopped cross domain linking, hubspot still keeps adding other URLs. How should I stop this? ---
**Author:** ![TAwesomeThing](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/tawesomething/32/197564_2.png) [@TAwesomeThing](https://community.hubspot.com/u/TAwesomeThing)\ **Post date:** [January 28, 2023, 1:17am UTC](https://community.hubspot.com/t/hubspot-is-adding-hstc-parameter-to-external-urls/11680/6 "2023-01-28T01:17:50Z")
Hello, I bought this domain [www.clafma.org](http://www.clafma.org) and I have a problem with the link, a text like (\_\_hstc=) appears after the link of my website. Probably whoever had this domain before me used your services and that’s why this link appears. From what I have seen here it is a “cross-domain tracking” problem and a change has to be made, but I don’t have access to the Hubspot account of the person who had this domain, so please if you can cancel this “cross-domain tracking” for my website. Thank you!