Your Team Keeps Saying the Word “DNS” and You’re Losing Sleep
Your marketing team opens every email with a sigh these days. Open rates dipped, spam complaints crept up, and your support inbox started bouncing a few customers a week. IT mentions something about SPF records and DKIM keys not aligning, but you have no idea if that’s a minor tweak or a five-alarm fire.
Meanwhile, a partner forwards you a phishing email that looks exactly like it came from your CEO. The domain checks out. The signature looks real. Only the urgent wire request for a fake vendor gave it away. You realize your digital identity is leaking, and you can’t tell where the holes are.
Your Infrastructure Is a Web of Silent Dependencies
Every email you send, every page your customers load, every API your app calls—it all depends on a handful of DNS records, cryptographic keys, and certificates that nobody sees but everyone relies on. These configurations don’t have a dashboard. They don’t send alerts when they drift. They just quietly break things.
A tech stack health score changes that. Like a credit score for your digital infrastructure, it sweeps through your domain’s DNS, email authentication, TLS encryption, and subdomain hygiene, then condenses the results into a single number. A tool like TechSpy can scan your domain in minutes and hand you a score that tells you, at a glance, whether your stack is a liability or an asset.
When that score is high, your email lands in inboxes, your website shows a lock icon, and nobody can spoof your domain. When it’s low, you’re one configuration mistake away from a deliverability collapse or a brand-damaging phishing attack.
Where Your Tech Stack Breaks Down
SPF: Who’s Allowed to Send on Your Behalf
The Problem
Your SPF record is missing completely, or it only lists your primary email provider while ignoring your CRM, survey tool, and marketing platform. Every time those services send an email, receiving servers can’t verify the source, and your messages get flagged as suspicious—or dropped outright.
How to Fix It
Audit every service that sends mail as your domain. Build a single v=spf1 record that includes each one using include: mechanisms, and end with -all to reject any sender not listed. A clean SPF record instantly tells the world who’s legit. Learn more in our SPF guide.
DMARC: Preventing Domain Spoofing
The Problem
Without DMARC, anyone can put your domain in the “from” field and send phishing emails that look like they came from your CEO. Your recipients can’t tell the difference, and your IT team has no visibility into who’s abusing your name.
How to Fix It
Publish a DMARC record starting with a policy of p=none so you can monitor without impacting delivery. Once SPF and DKIM are aligned, tighten to p=quarantine or p=reject. Use rua= to collect aggregate reports that reveal every sender using your domain. Get step‑by‑step instructions in our DMARC article.
TLS Certificates: The Expiry That Disrupts Trust
The Problem
Your website’s TLS certificate expires, and suddenly visitors see a “Not Secure” warning in their browser—or, worse, your payment integration and internal APIs stop working because no one renewed the cert. An expired certificate can make your whole business appear broken to the world.
How to Fix It
Enable auto‑renewal wherever your certificate provider supports it. For certificates you manage manually, monitor the notAfter field and trigger alerts weeks before expiration. Dive deeper into certificate management with our TLS/SSL Certificates Explained piece.
DNSSEC: Protecting Against DNS Hijacking
The Problem
If your domain doesn’t use DNSSEC, an attacker on a compromised network can poison DNS responses and redirect visitors to a fake login page. Nothing alerts you; the user sees your real domain name and hands over credentials.
How to Fix It
Enable DNSSEC at your registrar. Make sure the DS record chain is properly configured so resolvers can cryptographically verify every DNS answer. This one change slams the door on DNS‑based impersonation. Read our DNSSEC explainer for the full picture.
From Score to Action
Stay Ahead of Configuration Drift
include: list whenever you add a new sending service.rua= data).*) that might expose unanticipated subdomains.The Bottom Line
A tech stack health score doesn’t replace your technical team—it gives you a single point of truth when business continuity depends on invisible infrastructure. When you know your score, you can fix what’s broken before it breaks your brand.
Get yours in five minutes. Run a free TechSpy domain scan and see your health score today.