Privacy Policy

This policy explains what information the Custom Silicon Solutions website collects, why, and what you can do about it. It covers this website only. It does not cover information you give us by telephone, by email, or in the course of a commercial engagement.

Who we are

Custom Silicon Solutions, Inc. (“CSS”, “we”, “us”) is a fabless custom ASIC design and supply company at 18021 Cowan, Irvine, CA 92614, U.S.A. You can reach us on +1-949-797-9220 or through the contact page.

What we collect

Information you send us

When you submit the inquiry form we collect your first and last name, company, email address, telephone number if you provide one, and the message you write. We also record that you ticked the consent box, and when.

That information is stored in this website’s database and emailed to our sales team so we can reply. We use it to respond to your inquiry and to carry out any work that follows from it. We do not sell it, and we do not share it with anyone outside CSS except the service providers described below.

Checking that inquiries are genuine. When an inquiry arrives, this website automatically scores it — using how the form was filled in and which pages were read beforehand — and stores a label alongside it such as “likely genuine” or “likely automated”, together with the reasons for that label. This only labels. Nothing is rejected, hidden or deleted because of it, every inquiry is stored and sent to us in full, and a person reads all of them.

How you used this website

This site records which pages you view, in what order, how long you spend on each, the website or search engine you arrived from, and any campaign tags in the address you arrived on. This is held in a cookie set by this website, is kept for thirty minutes, and is not shared with anyone.

If you submit the inquiry form, that record is attached to your inquiry, so that whoever replies can see what you were reading. If you do not submit the form, the record expires and is not kept.

We do not record this for visitors who are signed in to the website as staff.

Microsoft Clarity

We use Microsoft Clarity, a website analytics service, to understand how people use this site so that we can improve it. Clarity records how you move around a page — where you scroll, what you click, and how long you stay — and can replay that activity as an anonymised session recording. It also records your approximate location, your browser and device, and the site you arrived from.

This information is collected by Microsoft and held on Microsoft systems under their privacy terms, not ours. We do not use it to identify you, and we do not sell it or use it for advertising.

Google Analytics

We use Google Analytics to measure how many people visit this site, which pages they read, and which of them go on to contact us. It is delivered through Google Tag Manager, which loads on every page and is the tool we use to add and change measurement without editing the site itself.

Google Analytics records the pages you view, roughly where in the world you are, your browser and device, the site or search engine you arrived from, and actions such as scrolling, downloading a datasheet, clicking our telephone number or email address, and submitting the inquiry form. It sets its own cookies to recognise a returning visit and to group the pages of one visit together. This information is collected by Google and held on Google systems under Google’s privacy policy.

We do not send Google the contents of the inquiry form. The Google tag is configured to remove email addresses before anything is sent.

Google advertising features. A setting called Google Signals is currently switched on in our Google Analytics. Where a visitor is signed in to a Google account and has allowed personalised advertising in their own Google settings, this lets Google connect that visit to their Google account, report on it across their devices, and use it for advertising purposes. A Google advertising cookie is set on this site as part of it. We do not run advertising campaigns, we do not buy or sell advertising audiences, and we do not upload customer lists to Google. You can switch these features off for every website you visit, including this one, from your own Google account’s ad settings.

How people choose to contact us

We count how often the telephone number, email address, LinkedIn link and map links on the contact page are clicked. These are totals only — a number per day, per link. No address, identifier or other information about you is stored with them, and they cannot be traced back to an individual.

Server records

Our hosting provider keeps standard server logs, which include the IP address of visitors, the pages requested, and the time of the request. These exist to run and secure the service.

Separately, to stop the inquiry form being used to send bulk messages, this website briefly keeps a scrambled one-way version of your IP address so it can count how many messages have come from one connection. It is kept for one hour, then discarded, and it cannot be turned back into your address.

Third parties

Some things on this site are provided by other companies, and those companies receive information about you when they load.

• Hosting. This website is hosted by Kinsta and served through Cloudflare. Both process visitor requests, including IP addresses, in order to deliver and protect the site.
• Google Maps. The contact page shows a Google map. When it loads, Google receives your IP address and the page you are on, under Google’s own privacy policy. The map only loads if you scroll to it. Every function of that page works without it, and the address and directions link do not require it.
• Microsoft Clarity. Our website analytics, described above. Microsoft receives your IP address, the pages you view and how you interact with them, under Microsoft’s own privacy policy.
• Google Analytics and Google Tag Manager. Our visitor measurement, described above. Google receives your IP address, the pages you view and the actions you take on them, under Google’s own privacy policy. Because Google Signals is switched on, this may be connected to your Google account if you are signed in to one and have allowed personalised advertising in your Google settings.
• Email delivery. Inquiries are sent to us by email, which passes through our mail provider in the ordinary way.

We do not run advertising campaigns from this site, we do not sell your information, and we do not embed social media tracking pixels. The one advertising-related thing on this site is the Google Signals setting described above, which we use for reporting rather than to advertise to you.

Cookies

This site sets two cookies of its own. The first holds the record of pages you have viewed described above and lasts thirty minutes. The second is set only when you submit the inquiry form, lasts ten minutes, and exists so that the thank-you page will open for you and not for anyone else. Both are readable only by this website. If you sign in to the website as staff, WordPress sets additional cookies to keep you signed in.

Other companies set cookies here too. Microsoft Clarity and Google Analytics, both described above, set cookies to recognise a returning visit and to group the pages of one visit together; Google also sets an advertising cookie as part of the Google Signals setting described above. Cloudflare, which protects the site, sets a short-lived cookie to tell real visitors from automated traffic. These are set by those companies, not by us.

You can clear or block cookies in your browser settings. Blocking them does not stop you using this site or contacting us.

Your choice about analytics cookies

A small notice appears when you first arrive, and afterwards a “Cookie settings” button stays in the corner of every page so you can change your mind at any time.

If you are visiting from Europe or the United Kingdom, nothing is measured until you press Accept. Microsoft Clarity is not loaded at all, and Google Analytics receives no cookie and no identifier before that point. If you press Decline, it stays that way.

If you are visiting from anywhere else, measurement starts when the page opens, which is what the law here allows, and the notice tells you so. Pressing “Turn off cookies” stops Microsoft Clarity and Google Analytics for you from that moment on.

If your browser sends an automatic opt-out signal — the Global Privacy Control setting offered by some browsers and extensions — we treat that as a decline everywhere in the world, and you will not be asked.

Your choice is remembered in your own browser, not on our servers, so it applies to the device and browser you made it on.

How long we keep things

We keep inquiries for as long as we need them to respond to you, to carry out any resulting work, and to meet our record-keeping and legal obligations. The browsing record described above expires after thirty minutes unless it is attached to an inquiry. Click totals are kept for six months and contain nothing personal. Information held by Google and by Microsoft is kept by them, on their own schedules, under their own policies; our Google Analytics is set to keep visitor-level records for fourteen months.

Your rights

You can ask us what information we hold about you, ask us to correct it, or ask us to delete it. Write to us at the address above or through the contact page and we will respond.

If you are in California, the CCPA gives you rights to know what personal information is collected, to have it deleted, and not to be discriminated against for exercising those rights. We do not sell personal information. We do not run advertising from this site and we do not share your information with anyone for their own advertising. You should know, though, that the Google Signals setting described above can allow Google to use your visit for advertising purposes of its own. If you would rather it did not, you can switch that off in your Google account’s ad settings, or block cookies in your browser, and the site will work exactly the same.

If you are in the United Kingdom or the European Economic Area, you have rights of access, correction, erasure, restriction, portability, and objection under the UK GDPR and the GDPR. Where we rely on your consent, you can withdraw it at any time. Note that your information is processed in the United States.

Children

This is a business-to-business website. It is not intended for children and we do not knowingly collect information from them.

Changes to this policy

If we add or change how this site collects information, we will update this page. Google Analytics and Google Tag Manager were added on 9 September 2026 and this page was updated to describe them on 24 September 2026; we should have done that at the time, and we are saying so here rather than quietly backdating it.

Last updated 24 September 2026.