Tech
DNS Security Best Practices: Why Your Domain Name System Deserves More Attention
For most organizations, the Domain Name System sits quietly in the background, translating human-readable web addresses into machine-readable IP addresses without anyone giving it a second thought. It works so reliably that it’s easy to forget DNS even exists — until something goes wrong. And when it does go wrong, the consequences can be severe: hijacked traffic, redirected customers, stolen credentials, and reputational damage that takes months to repair.
DNS was never designed with security as a primary concern. It was built in the 1980s to solve a naming problem, not a trust problem. Decades later, that original design still underpins nearly every interaction your business has online — and attackers know it. DNS-based attacks have become one of the most common and most underestimated vectors in the modern threat landscape. This guide walks through why DNS security matters, the most common attack types organizations face, and the practical steps you can take to lock down this often-overlooked layer of your infrastructure.
Why DNS Is a Bigger Risk Than Most Teams Realize
Security teams tend to focus their attention on endpoints, firewalls, and identity systems — and rightly so. But DNS sits at a unique chokepoint: it’s involved in almost every network transaction, from a user loading a website to a server resolving an API call to an email client checking where to deliver a message. If an attacker can manipulate DNS, they can potentially redirect any of that traffic without ever touching your endpoints directly.
A few factors make DNS particularly attractive to attackers:
It’s foundational, not optional. Nearly everything that happens on your network depends on DNS resolving correctly. A single compromised DNS record can silently redirect an entire subdomain’s worth of traffic.
It’s often unmonitored. Many organizations configure DNS once during setup and rarely revisit it. Unlike firewall rules or access policies, DNS records don’t always get regular audits, which means unauthorized changes can go undetected for weeks or months.
It spans multiple stakeholders. DNS records are frequently managed by a mix of IT, marketing (for campaign subdomains), and third-party vendors (for SaaS integrations). This diffusion of ownership creates blind spots — nobody has a complete picture of every record that’s been added over the years.
It’s a stepping stone, not just a target. Attackers rarely compromise DNS purely to cause outages. More often, DNS manipulation is a means to a bigger end: intercepting email, hosting phishing pages on a trusted domain, or quietly exfiltrating data through DNS tunneling.
Common DNS-Based Attacks You Should Know
DNS Spoofing and Cache Poisoning
In a spoofing attack, an adversary injects falsified DNS data into a resolver’s cache, causing it to return an incorrect IP address for a legitimate domain. Users trying to reach your website might unknowingly be redirected to a malicious lookalike site designed to harvest credentials or deliver malware. Because the browser still shows a familiar domain name, most users have no way of knowing anything is wrong.
Subdomain Takeover
When an organization decommissions a service — say, a marketing landing page hosted on a third-party platform — but forgets to remove the corresponding DNS record, that dangling record becomes an opportunity. An attacker can claim the abandoned resource on the third-party platform and effectively take control of a subdomain that still resolves under your organization’s trusted domain name. From there, they can host phishing content, malware, or fraudulent campaigns that appear to come from your brand.
DNS Tunneling
DNS tunneling abuses the DNS protocol to smuggle data in and out of a network, bypassing traditional security controls that don’t inspect DNS traffic closely. Because DNS queries are almost always allowed through firewalls by default, this technique has become a favored method for command-and-control communication and slow, low-volume data exfiltration.
DDoS Attacks Against DNS Infrastructure
If your authoritative DNS servers go down, so does everything that depends on them — your website, your email, your customer-facing applications. Attackers understand this leverage, which is why DNS infrastructure is a frequent target for distributed denial-of-service campaigns aimed at causing maximum disruption with a single point of failure.
DNS-Based Email Spoofing
Email is one of the most common places DNS weaknesses get exploited. Without properly configured authentication records, nothing stops an attacker from sending email that appears to originate from your domain. This is the foundation of business email compromise and spear-phishing campaigns that impersonate executives, vendors, or internal departments — often the very campaigns that cause the most financial damage to organizations.
Building a DNS Security Program: Practical Steps
1. Maintain a Complete, Current DNS Inventory
You cannot secure what you don’t know exists. Start by producing a full inventory of every DNS record associated with your domains — A, AAAA, CNAME, MX, TXT, and NS records included. For many organizations, this exercise alone surfaces forgotten subdomains, stale third-party integrations, and records nobody can explain. A routine DNS lookup against your domains is a simple but effective way to see exactly what’s currently published and catch discrepancies before they become incidents. Tools like the dns lookup checker from EasyDMARC make it straightforward to pull a domain’s full record set in seconds, which is useful both for periodic audits and for quickly verifying changes after DNS updates.
2. Remove Dangling Records Immediately
Once you have your inventory, cross-reference every CNAME and subdomain against the services they point to. Any record pointing to a decommissioned or unclaimed third-party resource should be treated as an active risk and removed or reclaimed without delay. Building this check into your offboarding process for any third-party service is far cheaper than cleaning up after a subdomain takeover.
3. Implement Email Authentication End to End
SPF, DKIM, and DMARC work together to prevent domain spoofing in email — but they only provide protection when they’re implemented correctly and kept up to date.
- SPF defines which mail servers are authorized to send email on your domain’s behalf.
- DKIM cryptographically signs outgoing messages so receiving servers can verify they haven’t been tampered with in transit.
- DMARC ties the two together, telling receiving mail servers what to do when a message fails authentication, and gives you visibility into who’s sending email using your domain.
Deploying all three, and monitoring DMARC reports on an ongoing basis, closes off one of the most exploited gaps in DNS-dependent security.
4. Enable DNSSEC Where Possible
DNS Security Extensions add a layer of cryptographic verification to DNS responses, making it significantly harder for attackers to successfully spoof or poison DNS data along the resolution path. DNSSEC adoption has historically lagged due to implementation complexity, but most major registrars and DNS providers now support it with relatively low operational overhead. If your provider offers it, there’s little reason not to enable it.
5. Monitor for Unauthorized Changes
DNS records should not change silently. Set up alerting for any modification to your authoritative DNS zones, and review changes as part of your standard change management process. Unexpected modifications — a new MX record you didn’t request, an altered A record for a critical subdomain — are often the earliest observable sign of a compromise in progress.
6. Restrict Access to Your DNS Management Console
DNS registrar and hosting accounts are high-value targets precisely because compromising them gives an attacker control over your entire domain. Enforce multi-factor authentication on every account with DNS management privileges, limit the number of people who hold that access, and use registry lock features where available to add friction against unauthorized transfers or record changes.
7. Audit Third-Party DNS Dependencies Regularly
Every SaaS tool, marketing platform, or CDN you connect via a CNAME record introduces a dependency outside your direct control. Maintain a living list of these integrations, review it quarterly, and remove entries for services you no longer use. This is one of the simplest habits that meaningfully reduces your subdomain takeover exposure over time.
Making DNS Security a Continuous Practice, Not a One-Time Project
The organizations that handle DNS security well don’t treat it as a project with a defined end date — they treat it as an ongoing discipline woven into their broader security operations. That means regular audits, not annual ones. It means DNS visibility as part of onboarding and offboarding workflows for every third-party service. And it means giving DNS the same level of monitoring and access control rigor already applied to identity systems and endpoints.
DNS may operate quietly in the background, but the attacks that exploit it are anything but minor. A single overlooked record, an unmonitored change, or a missing authentication policy can be all it takes for an attacker to hijack traffic, intercept email, or impersonate your brand at scale. The good news is that most of the fixes are neither expensive nor complex — they simply require consistent attention to a part of the infrastructure that’s too often left on autopilot.
Start with visibility. Know what’s published, know what’s authorized, and know as soon as something changes. From there, the rest of a solid DNS security posture follows naturally.
Tech
Configuration Automation: Key Benefits for Modern Enterprises
Modern enterprises use numerous systems, servers, and devices, and they must all function properly. In complex IT environments, manually setting up and modifying these systems is laborious, repetitive, and prone to human error. Configuration automation comes into play here, enabling businesses to quickly and accurately manage their IT operations. Automation allows you to perform repetitive tasks reliably without human intervention for each little adjustment. Businesses can reduce mistakes, save time, and achieve more consistency and stability across their technology environment by automating routine configuration tasks.
1. Reducing Human Error in Daily Operations
A huge advantage of configuration automation is the minimization of human error. If engineers are manually configuring every day, tiny mistakes can eventually develop that could cause major issues. Automation removes this chance by always following set directions with no fatigue and distractions. Regardless of who started the process, this consistency guarantees that systems operate precisely as intended. Reduced errors result in fewer interruptions, and less troubleshooting, as well as more assurance in day-to-day operations.
2. Saving Valuable Time Across Teams
Hours that could be used for more productive work are frequently wasted on manual configuration procedures. Automation swiftly completes tedious setup procedures, allowing technical teams to concentrate on creativity in addition to problem-solving. Automated scripts can finish the same operation in minutes rather than requiring a whole day to configure similar systems one by one. Large-scale rollouts and urgent system changes make this time efficiency extremely essential. Operational tasks no longer consume teams, allowing them to focus on strategic goals.
3. Maintaining Consistency Across Systems
Inconsistencies are nearly inevitable when several systems are manually configured.
Automation allows you to standardize every server, device, and application to the same baseline configuration. Standardization is key for multi-site organizations and larger networks. It’s much easier to find problems, push updates, and ensure compliance with internal policies when everything is configured the same. Manually recording these variations becomes a laborious and error-prone operation in the absence of technology. A standardized environment strengthens the foundation for smoothly scaling operations as the business expands, streamlines management, and increases dependability.
4. Closing Security Gaps with Automation
Out-of-date or incorrectly configured systems leave gaps in your security. Automation lets you quickly and consistently apply security settings to close that gap. Automated procedures can implement security regulations instantly rather than waiting for manual updates, lowering exposure to possible attacks. In large environments with plenty of endpoints, this proactive strategy reduces the likelihood of oversight. It’s also easy to identify when someone has made unauthorized changes with automation. If something is different than how it’s configured to be, you’ll know. Automation can significantly improve your organization’s security.
Conclusion
For businesses looking to improve productivity, consistency, and security in complex IT settings, configuration automation has become crucial. Businesses can further automate their operations with Opkey by utilizing a single Cloud Application Lifecycle Management (CALM) platform driven by Argus AI. Opkey automates configuration, testing, impact analysis and training for Oracle, Workday, Salesforce, Coupa and more business applications so teams can confidently embrace change. The no-code AI automation platform helps businesses operate simpler, become more dependable and continuously improve enterprise applications across their lifecycle by decreasing manual effort up to 80%, cutting go-live schedules by 30% and mitigating risk of downtime by 92%.
Tech
4 Reasons Why Your Checkout is Burning Your Revenue
You have great products, but they aren’t fetching you customers. They may be browsing and adding stuff to their cart. But they leave right before paying.
A lot is actually going wrong on your checkout page to cause this.
A shipping fee might show up too late. A form might ask for too many details before someone can pay. Sometimes your checkout might show payment methods your customers don’t prefer. Moreover, the experience might not be smooth on their mobiles.
Switching to a new ecommerce checkout solutions provider won’t change things overnight. You need to understand the problems impacting your revenue in depth. Let’s begin.
1. Too Many Steps at Checkout
Picture this. A customer loves your products and is ready to buy some. Just when they were about to complete the payment, your checkout page throws in lots of tricky steps. This can be requesting a password with strict rules or adding a CAPTCHA or “verify you are human” check.
That’s just going to make the checkout process annoying.
Start by cutting your checkout down to what’s essential. Keep it to a name, address, payment details, and confirmation. Nothing else belongs on that screen. Make sure shipping costs, taxes, and any fees are displayed on the product page or cart before checkout begins.
The page must have autofill for country/location based on the shipping address. Don’t just place a long dropdown country selector. You can add a shipping calculator that updates in real time. If you offer free shipping past a certain order value, let customers know that early on.
2. Payment Options Customers Don’t Fancy
A customer can love your product, breeze through your checkout, and still walk away because you didn’t offer a payment method they’d like. You see, buy-now-pay-later options and digital wallets aren’t extras anymore. They are the norm now.
But there are other related problems you need to tackle.
A card might get declined for no real reason, or billing details may not match what the issuer expects. A subscription renewal can also fail. Customers don’t think twice before leaving when these things happen. Here’s what to do.
- Include UPI, major cards, digital wallets like Apple Pay and Google Pay, and a BNPL option.
- Clean up your payment processor data. It must have consistent billing formats, correct customer details, and recognizable merchant descriptors.
For subscriptions, use smart retry logic and card updater functionality to make payments more seamless.
3. The Mobile Conversion Gap
The global mobile e-commerce market might be worth $5,009.99 billion by 2034. So, a large part of your traffic now already comes or will come from phones in the future. But if you’re still losing buyers, there are issues in your store’s mobile UX.
Look carefully at your store design. Ensure the buttons, dropdowns, and form fields have enough space to tap accurately on the first try. Autofill should handle names, addresses, and card details, cutting typing down to almost nothing.
For digital wallets like Apple Pay and Google Pay, you must offer buyers a super smooth interface to pay. They must not be typing a sixteen-digit card number on a phone keyboard.
Test the entire flow on an actual phone, not just a resized browser window. Use Android and Apple devices for testing. Many issues don’t stand out on a desktop, like a keyboard covering a button or buttons that appear too small on a phone screen.
4. Forcing an Account Creation
A customer who’s ready to pay can leave if the only path forward is creating an account first.
What’s the best way to solve this? Make guest checkout the default option. Put it at the front and center, and ask for account creation only after they place the order. This will let you track shipping or speed up the process next time.
You can offer quick one-click logins via their social media accounts, Google, or Apple accounts. Save their shipping and payment details securely during checkout. It’ll help buyers switch to a complete account later.
If you need customer data for marketing, collect their email addresses during guest checkout. Most customers create a full account if they like shopping from your store. But it’s all up to how your checkout treats them!
Run This Quick Checkout Audit
Before making any big changes, walk through your own checkout like a first-time buyer and look out for these:
- See your checkout loading time. It must not be more than 3 seconds.
- Try entering an incorrect or expired card number to check if you get an error message telling you what’s wrong.
- Add items to the cart. Check your cart after some time to see if it still contains those items.
- Look for glitchy coupon codes, since they can send people off to search for a discount instead of finishing the payment.
- You also need to confirm that the order confirmation page and email have complete order details. This must have product info, charges, and the expected date of arrival.
Most importantly, put yourself in the shoes of your buyer to see how the shopping experience actually feels. Gather inputs from your team about this. To get the best out of your checkout, you can consult CodeClouds. They’ve been offering custom checkout solutions for years across a variety of projects, so they have the expertise to solve your problems.
Tech
The Hidden Cost of a Held Shipment in Research Procurement
A held shipment is one of the least visible line items in a research budget. Nothing is written off, no invoice is raised, and the material usually arrives in the end. The cost lands elsewhere, spread across rescheduled work, idle capacity and hours of administration nobody planned for.
Procurement systems are not built to catch this. A purchase order closes when goods are received, and a delivery three weeks late still closes as delivered. Unless someone measures the gap between the promised date and the actual one and attaches a cost to it, the disruption disappears from the record and the supplier keeps its place on the approved list.
What actually happens when a parcel stops moving
The mechanics are mundane. A consignment is selected for inspection, a broker queries a classification, paperwork does not match the goods description, or a form is unsigned. In each case the parcel enters a holding pattern and someone has to unpick the reason.
The first signal is often silence. Tracking stops updating, and a day or two passes before anyone treats that as a problem rather than a lag. By the time the buyer contacts the supplier, the supplier contacts the courier, and the courier locates the consignment, most of a working week can be gone.
Resolution then depends on documents. If the supplier can produce a corrected invoice or the right classification code within hours, the delay stays short. If the request has to cross a time zone and wait for a desk to be occupied, it does not.
The cost stack nobody adds up
The financial damage from a held shipment sits in four layers, and only the last is ever obvious.
- Administrative time. Chasing, escalating, resubmitting paperwork and updating internal stakeholders. Frequently several hours across multiple people, at least some of them senior.
- Idle capacity. Booked instrument time, technician hours allocated to a task that cannot start, and shared facility slots that are lost rather than deferred.
- Schedule displacement. Delayed work does not slide by the length of the delay. It slides to the next available slot, which is often much further out, and it pushes everything queued behind it.
- Direct charges. Storage fees, re-delivery charges and, in the worst cases, replacement material bought at short notice from whoever has stock.
Work through your own numbers rather than borrowing anyone else’s. Take the fully loaded hourly cost of the people involved, multiply by the hours an incident consumes, add the value of any capacity that went unused, and add the direct charges. Most labs that run the exercise honestly find the total dwarfs the saving that justified the cheaper supplier.
Why single incidents get forgiven
Each delay looks like bad luck. Customs was busy, the courier misrouted it, the query was unusual. Taken one at a time, none of these seems to say anything about the supplier, so nothing changes and the next order goes to the same place.
The pattern only appears in aggregate. A supplier responsible for repeated holds in a year is not unlucky, and the reason is almost always upstream of the border: inconsistent documentation, vague descriptions on the commercial invoice, or a shipping department that does not check what it has generated. Buyers who log every late delivery with a cause code soon see which suppliers cause their own problems.
Concentration of risk gets missed the same way. A lab may feel well covered because it has three approved suppliers, then discover that all three ship from the same region through the same customs route. When that route slows, everything slows at once.
Design the supply chain so a hold hurts less
Delays cannot be eliminated. Exposure to them can be reduced, and most of the useful moves are procedural rather than expensive.
Keep buffer stock on the items a programme genuinely cannot proceed without, and be strict about which items those are. Split large orders across two consignments when timing is critical, so a single hold does not stop everything. Place repeat orders earlier than the lead time strictly requires, giving the schedule slack it can absorb.
Shortening the physical route removes whole categories of risk. Sourcing within the market removes the border event for that leg, which is a large part of why buyers increasingly qualify a UK-based research peptide supplier alongside their existing international sources rather than relying on a single overseas route.
Whatever the route, ask how a supplier handles a hold before you need to know. A supplier who has clearly dealt with it before will describe a process. One who has not will describe an intention.
Making the cost visible in your own numbers
What gets measured gets managed, and delivery reliability is straightforward to measure once someone decides to.
- Record promised date and actual date on every order, without exception.
- Flag any variance beyond an agreed tolerance and record a short cause code.
- Attach an estimated internal cost to each flagged incident, even a rough one.
- Review by supplier quarterly rather than by individual order.
- Bring the reliability figure into price negotiations, where it belongs.
Two suppliers quoting within a few per cent of each other are not equivalent if one delivers on the promised date nine times in ten and the other manages seven. That difference has a value, and once written down it can be discussed openly.
A procurement question, not a logistics one
Held shipments are usually treated as a shipping problem, which is why they keep happening. They are a procurement problem. The decisions that determine how often a lab loses a week to a stopped parcel are made when the supplier is selected and the reorder point is set.
Labs that treat delivery reliability as a specification rather than a hope tend to spend slightly more per unit and considerably less per year. Material is only useful once it is on the bench, and a consignment sitting in a customs shed is worth nothing to the study waiting for it.
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