Sysdig Secure vs Zscaler Zero Trust Exchange Platform comparison

The compared Sysdig and Zscaler solutions aren't in the same category. Sysdig is ranked #17 in CNAP , with an average rating of 8.3, and holds a 3.3% mindshare in the category. Zscaler is ranked #2 in SASE , with an average rating of 8.5, and holds a 8.9% mindshare. Additionally, 100% of Sysdig users are willing to recommend the solution, compared to 98% of Zscaler users who would recommend it.

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Feb 8, 2026

Sysdig Secure and Zscaler Zero Trust Exchange compete in cybersecurity. Sysdig leads in pricing and customer support, while Zscaler provides superior security features that justify its higher price.

Features: Sysdig Secure offers container and Kubernetes security with runtime threat detection, compliance, and image scanning capabilities. It also integrates well with cloud providers like AWS, Azure, and Google Cloud, offering in-depth visibility. Zscaler Zero Trust Exchange focuses on secure access service edge (SASE) solutions, providing robust cloud security, zero-trust network access, and comprehensive internet access protection. Its API integration and DLP capabilities enhance security management.

Room for Improvement: Sysdig Secure could enhance scalability, streamline UI complexity, and improve the integration process with third-party solutions. Zscaler might benefit from reducing deployment complexity, addressing latency issues in some regions, and refining its threat detection algorithms for better efficiency.

Ease of Deployment and Customer Service: Sysdig Secure is easier to deploy for container environments with supportive customer service. Zscaler's deployment can be complex due to its range of features, yet its strong support teams assist in overcoming these challenges.

Pricing and ROI: Sysdig Secure offers competitive pricing with good ROI for container security, while Zscaler's solution involves higher costs justified by its extensive security features. Zscaler delivers significant ROI for organizations requiring comprehensive security solutions.

To learn more, read our detailed Sysdig Secure vs. Zscaler Zero Trust Exchange Platform Report (Updated: July 2025).

Buyer's Guide

Sysdig Secure vs. Zscaler Zero Trust Exchange Platform

July 2025

Download the complete report

Helped 896,034 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Qualys TotalCloud

Mindshare comparison

Cloud-Native Application Protection Platforms (CNAPP) Mindshare Distribution
Product	Mindshare (%)
Sysdig Secure	3.3%
Wiz	13.8%
Prisma Cloud by Palo Alto Networks	11.0%
Other	71.9%

Cloud-Native Application Protection Platforms (CNAPP)

Secure Access Service Edge (SASE) Mindshare Distribution
Product	Mindshare (%)
Zscaler Zero Trust Exchange Platform	8.9%
Prisma Access by Palo Alto Networks	10.4%
Cato SASE Cloud Platform	8.7%
Other	72.0%

Secure Access Service Edge (SASE)

Featured Reviews

Robert Orłowski

IT Security Expert at Alior Bank S.A.

Unified risk scoring has improved our cloud visibility and simplifies remediation priorities

Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.

Read full review

Mumu Muhaemin

DevSecOps Engineer at a outsourcing company with 1,001-5,000 employees

Runtime threat detection has improved and security teams prioritize real Kubernetes risks

The best feature Sysdig Secure offers is threat detection. The threat detection feature on Sysdig Secure stands out compared to other solutions I have seen or used because Sysdig sees the actual behavior inside the container or kernel and correlates it with Kubernetes infrastructure, which makes detection both earlier and more precise in a cloud-native environment. Sysdig Secure has positively impacted our organization by improving visibility into our Kubernetes environment and focusing on real risk, which has reduced alert noise, improved threat detection at runtime, and made vulnerability management more efficient by prioritizing issues that actually affect running workloads.

Read full review

Vibin Thomas

Team Lead, Technical Content Security at Valuepoint Systems

Zero trust access has transformed remote connectivity and now simplifies secure app usage

Zscaler Zero Trust Exchange Platform, especially Zscaler Private Access, is very strong, though there are a few areas where improvements can be made. One challenge observed is around initial troubleshooting and visibility. While Zscaler Private Access provides logs, it can sometimes take time to pinpoint the exact cause of access issues, especially in complex environments with multiple policies and identity integration. Another area is the dependency on identity and connector health. Since Zscaler Private Access is heavily reliant on app connectors and identity providers, any issues with these components can impact user access, making proper monitoring critical. During the initial setup, policy configuration and application onboarding require careful planning, especially for larger environments with many applications. These challenges are manageable with proper design and monitoring. Overall, the platform delivers strong security and user experience. I would recommend a few improvements, especially around user interface, reporting, and troubleshooting experience. From a user interface perspective, while the platform is powerful, the policy configuration and navigation can feel complex, especially for new users. A more simplified and intuitive layout for policy mapping and application access would help reduce the learning curve. In terms of reporting, Zscaler Private Access provides logs, but having more built-in customizable dashboards and analytics would be very helpful. Better visibility into user access patterns, application performance, and real-time troubleshooting insights would improve operational efficiency. From a support and troubleshooting standpoint, it would be beneficial to have more granular centralized visibility, allowing for quick end-to-end tracing of a user request from authentication to application access without switching between multiple views. These improvements would make the platform even more efficient, especially for large-scale enterprise environments.

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"In my opinion, this is the best tool."

"The most valuable feature is the consolidated information that it provides from various platforms."

"The scalability is good as well. I would rate it ten out of ten."

"Its dashboards are brilliant. It provides in-depth insights."

"The vulnerability management feature is the one I like the most because it provides a clear picture of all vulnerabilities."

"I would definitely recommend Qualys TotalCloud to other users."

"I would definitely recommend Qualys TotalCloud to other customers."

"TruRisk Insights is the most important innovation they've released this year."

More Qualys TotalCloud pros

"From a container-based standpoint, it offers excellent scalability to its users...I would tell those planning to use the solution that, from a container standpoint, it's excellent."

"The tool has the capability to conduct scans initially. It can perform scans on your virtual machines, physical machines, containers, and container images. A standout feature is its ability to scan offline container images stored in your container registry. Additionally, it can scan runtime images in your cluster or on your host machine. This allows for the detection of vulnerabilities in running containers, including loaded libraries. Notably, the tool can identify which library vulnerabilities are already present in your system. An added advantage is its capacity to take action beyond threat detection. It has the ability to block access and respond to encountered threats."

"In terms of measurable outcomes, I have seen a reduction in vulnerabilities, as Sysdig Secure can tell us how many vulnerabilities are present on a day-to-day report basis, which has improved our efficiency by more than 50% and helps us stay compliant with necessary regulations."

"I have not seen any stability issues so far."

"The proactiveness of the support has been fantastic. Every time we mention something in a meeting that we're trying to do, he proactively takes that as an investigation topic and looks into it. He'll provide the solution even though we might not have asked him to investigate it."

"The log monitor is the most valuable feature."

"Sysdig Secure has positively impacted our organization by improving visibility into our Kubernetes environment and focusing on real risk, which has reduced alert noise, improved threat detection at runtime, and made vulnerability management more efficient by prioritizing issues that actually affect running workloads."

"I see Sysdig as the most comprehensive solution in comparison to its competitors."

More Sysdig Secure pros

"The customer service and support are very good."

"It does the job. What it is needed for. I can use it for VPN, I can use it for secure connections, I can use it as a firewall. So the solution does the job."

"The most valuable feature is its seamless integration capabilities, streamlining the process by eliminating the need for extensive installations."

"On DLP terms, Zscaler Cloud DLP ensures that data doesn't go outside of the organization. So on the network level, Zscaler does a pretty good job."

"The most valuable features of Zscaler Private Access are its ability to integrate with multiple IDPs and application segmentation."

"Subsequently, after this, there is a huge reduction, as the vulnerabilities, especially the security bugs that were coming prior to Zscaler Zero Trust Exchange Platform, were about 20,000 to 22,000 and have come down more than 40 percent, which is definitely an advantage over the previous product."

"It is a very scalable solution. Scalability-wise, I rate the solution a ten out of ten."

"The agent's versatility is notable, used for digital experience monitoring to collect valuable endpoint metrics for troubleshooting."

More Zscaler Zero Trust Exchange Platform pros

Cons

"Some major banks and insurance companies require an on-premises solution for comprehensive vulnerability management, which TotalCloud does not offer."

"The price is very expensive, actually."

"With the growing integration of AI, I would like Qualys to enhance its service offerings to better accommodate AI-related risks."

"There is room for improvement in the support."

"A feature improvement could be the inclusion of Windows OS support for container security, as it is currently only supported for Linux."

"The onboarding process is a bit difficult. In the initial phase, it is very difficult to understand the features, what the dashboard contains, and what criteria they are using."

"We encountered challenges identifying the correct resource category for certain items, such as those in containers or storage."

"TotalCloud could improve the classification of vulnerabilities. Specifically, it could enhance the categorization of what aspects fall under patches resolved by OS or software updates and what pertains to configuration adjustments."

More Qualys TotalCloud cons

"Sysdig's biggest weakness is dashboarding and reporting. You have access to the data and can get everything you need, but we need the ability to summarize the information quickly in a format that senior leaders can understand. We report to the executive level and global board. I need to roll all that in-depth information into a quick summary, and their maturity level isn't there. I'm seeing that on the future road map, but it isn't there now."

"Banks and financial institutions cannot use Sysdig Secure because it doesn't sell SaaS-hosted versions for under two hundred working nodes."

"The dashboard could be more simple and show the more important issues that are detected first. We'd like to be able to set it up so more important issues show up more prominently in the dashboard."

"They should make it specific with a couple of features only."

"I give it an eight because of the bugs, specifically the fix version bug where sometimes there is no fix version shown, and I wish Sysdig Secure would create a customizable UI that orders features by importance to enhance user experience."

"Sysdig Secure works well for us, but there are a few areas for improvement, such as the alerting and notification system being more flexible for complex workflows, and some dashboard and reporting features could be more customizable to match specific team needs."

"Reporting can definitely be better. Live dashboards should be configurable for a longer period of time rather than 30 days. Being able to go back in time to compare six months ago to today would be valuable."

"The solution needs to improve overall from a CSPM standpoint since they can't compete with Wiz or Orca."

More Sysdig Secure cons

"Zscaler Private Access's reporting is poor. We should have more insight into the reports regarding what is blocked and allowed."

"The scalability is a weak point right now. Its scaling capabilities are lacking, and we'd like to see that improve in the future."

"The interface needs a bit of work."

"Sometimes applications crash on some machines, and we’d like Zscaler to give us some information as to why that may have happened."

"Another area of improvement is implementation through non-client connectors. The solution can be implemented in two ways. One uses the back file; the other one uses client connectors. So the client connector is pretty fast, but when it comes to non-client connectors and procedures, it's kind of delayed and slow."

"Sometimes, support takes time since the solution has some bugs that need fixing."

"The stability could be improved."

"Occasionally, there are certain delays in report generation."

More Zscaler Zero Trust Exchange Platform cons

Pricing and Cost Advice

"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."

"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."

"TotalCloud's price is about right where I would expect it to be."

"The cost is high, but it meets our organizational needs."

"Qualys TotalCloud offers cost-effective licensing flexibility."

"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."

"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."

"Its price seems higher compared to other tools, but it is worth it. If they could adjust the pricing and make it comparable with other tools, that would be great."

More Qualys TotalCloud pricing and cost advice

"In comparison to other cloud solutions, it's reasonably priced. However, when compared to in-house built open-source projects, it might be considered somewhat costly. The cost depends on whether someone sees the support provided by Sysdig as an advantage or if it's deemed unnecessary. Personally, I find the support to be excellent and consider it a good value."

"The solution's pricing depends on the agents...In short, the price depends on the environment of its user."

"It is quite costly compared to other tools."

"Sysdig is competitive. The quality matches the pricing. Obviously, everyone wants things to be cheaper, but if you're realistic, you acknowledge that quality service comes with a price. Sysdig is the gold standard for Kubernetes, and I wouldn't choose anything else. We live in Kubernetes. Everything is containerized, so that means a lot to us, and we're willing to make an investment."

"I am always going to say that it could be a little bit cheaper. I do feel that it is a little bit on the expensive side."

"The licensing model for Zscaler Cloud DLP allows you to only buy what you need. You don't need to buy it as a whole, so it's good."

"My company is a Zscaler Private Access partner, so the customers pay for the license fees."

"Pricing for Zscaler Private Access is moderate. It's acceptable, though I can't give you the exact price currently. It's not too expensive, and on a scale of one to five, I would rate it a four out of five in terms of pricing."

"Zscaler Private Access can be an expensive solution, depending on the license type you will purchase."

"It is an auto-renewal subscription service."

"Zscaler Cloud DLP is moderately priced. We pay around 2 million rupees per year."

"The technical support is good."

"It's expensive currently. But when purchasing for a large number of users, there's room to negotiate. It's really up to the procurement team."

More Zscaler Zero Trust Exchange Platform pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Cloud-Native Application Protection Platforms (CNAPP) solutions are best for your needs.

See recommendations

896,034 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

16%

Computer Software Company

Manufacturing Company

Government

Financial Services Firm

17%

Computer Software Company

12%

Comms Service Provider

Outsourcing Company

Financial Services Firm

12%

Manufacturing Company

10%

Computer Software Company

Insurance Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	3
Large Enterprise	28

By reviewers
Company Size	Count
Small Business	6
Midsize Enterprise	2
Large Enterprise	5

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	12
Large Enterprise	45

Questions from the Community

What is your experience regarding pricing and costs for Qualys TotalCloud?

The price is very expensive, actually.

See all answers

What needs improvement with Qualys TotalCloud?

Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...

See all answers

What is your primary use case for Qualys TotalCloud?

Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...

See all answers

What needs improvement with Sysdig Secure?

Sysdig Secure works well for us, but there are a few areas for improvement, such as the alerting and notification sys...

See all answers

What is your primary use case for Sysdig Secure?

Our primary use case for Sysdig Secure is runtime threat detection and vulnerability management.

See all answers

What advice do you have for others considering Sysdig Secure?

My advice for others looking into using Sysdig Secure is to clearly define your primary use case before getting start...

See all answers

What is the better solution - Prisma Access or Zscaler Private Access?

We looked into Prisma Access before choosing Zscaler Private Access (ZPA). Palo Alto’s Prisma Access is a secure ac...

See all answers

What needs improvement with Zscaler SASE?

The solution needs to improve a lot of aspects.

See all answers

What is your primary use case for Zscaler SASE?

We are using Zscaler Zero Trust Exchange for its Zscaler Internet Access service. It provides web security, DLP, data...

See all answers

Comparisons

Wiz vs Qualys TotalCloud

Compared 13% of the time

Microsoft Defender for Cloud vs Qualys TotalCloud

Compared 9% of the time

Prisma Cloud by Palo Alto Networks vs Qualys TotalCloud

Compared 6% of the time

Nucleus Security vs Qualys TotalCloud

Compared 5% of the time

JupiterOne vs Qualys TotalCloud

Compared 5% of the time

More Qualys TotalCloud Competitors

Aqua Cloud Security Platform vs Sysdig Secure

Compared 12% of the time

Prisma Cloud by Palo Alto Networks vs Sysdig Secure

Compared 8% of the time

Wiz vs Sysdig Secure

Compared 7% of the time

SentinelOne Singularity Cloud Security vs Sysdig Secure

Compared 5% of the time

Upwind vs Sysdig Secure

Compared 5% of the time

More Sysdig Secure Competitors

Cato SASE Cloud Platform vs Zscaler Zero Trust Exchange Platform

Compared 6% of the time

Prisma Access by Palo Alto Networks vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

FortiSASE vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

Cloudflare One vs Zscaler Zero Trust Exchange Platform

Compared 4% of the time

More Zscaler Zero Trust Exchange Platform Competitors

Product Reports

Buyer's Guide

Qualys TotalCloud

May 2026

Download Qualys TotalCloud product report

Buyer's Guide

Sysdig Secure

May 2026

Download Sysdig Secure product report

Buyer's Guide

Zscaler Zero Trust Exchange Platform

May 2026

Zscaler Zero Trust Exchange Platform report

Download Zscaler Zero Trust Exchange Platform product report

Also Known As

Qualys TotalCloud with FlexScan

No data available

Zscaler SASE, Zscaler DLP, Zscaler CASB, Zscaler CSPM, Zscaler Browser Isolation, Zscaler Posture Control

Overview

Qualys TotalCloud enhances security posture across cloud environments with continuous monitoring, vulnerability management, and risk visualization, ensuring efficient threat assessment and automated remediation for improved cyber risk reduction.

Qualys TotalCloud offers a robust suite of security tools essential for organizations managing multi-cloud infrastructures. By integrating cloud accounts and automating workflows, it supports AWS, Azure, and GCP, offering comprehensive vulnerability management and zero-day detection. The platform's user-friendly design, combined with its extensive risk management and unified threat assessment capabilities, enables organizations to prioritize and remediate vulnerabilities effectively. TruRisk Insights provides clear insights on cyber risks, while the automation options streamline patch management and scanning processes. API integration across IaaS and SaaS environments further enhances resource allocation efficiency and saves time, addressing misconfigurations across cloud environments.

What are the most important features of Qualys TotalCloud?

Accurate Vulnerability Reports: Delivers precise and actionable insights for risk mitigation.
Zero-Day Detection: Identifies and addresses zero-day vulnerabilities proactively.
Unified Threat Assessment: Offers comprehensive evaluation of threats across the environment.
Extensive Risk Management: Manages risks effectively with advanced insights and prioritization.
Continuous Monitoring: Provides non-stop surveillance for vulnerabilities and threats.
Cloud-Native Automation: Streamlines processes and reduces manual efforts using automation.
FlexScan for Internet-Facing VMs: Scans external VMs efficiently to detect vulnerabilities.
Dashboard Risk Visualization: Clear visualization helps prioritize vulnerabilities.

What benefits and ROI should users look for?

Improved Security Posture: Enhances threat detection and response across clouds.
Time Savings: Automation reduces time spent on manual vulnerability management.
Resource Efficiency: Better allocation of resources through streamlined workflows.
Enhanced Risk Prioritization: Focus on critical vulnerabilities for effective mitigation.
Integrated Cloud Accounts: Facilitates seamless cloud management and security.

Qualys TotalCloud is deployed in sectors needing rigorous vulnerability management, such as finance and healthcare. Companies utilize it to secure multi-cloud environments like AWS, Azure, and GCP, focus on compliance, and integrate security into CI/CD pipelines to detect and remedy threats pre-deployment.

Qualys

Sysdig Secure offers comprehensive threat detection and vulnerability scanning, integrating seamlessly with platforms like Kubernetes and cloud providers. It enhances compliance monitoring while prioritizing risks to improve security posture.

Sysdig Secure is designed for runtime security across containerized environments and cloud platforms. It integrates with tools like Falco for effective threat detection and extensive compliance monitoring. Users benefit from its friendly interface and visibility improvements, aiding in reducing alerts and managing vulnerabilities. Integrations with Kubernetes and Terraform enhance its flexibility, providing wide-ranging applicability and cloud support. There's a need to improve dashboard simplicity and enrich reporting capabilities. The tool should better handle Kubernetes audit events and increase API accessibility across more platforms. Users also seek advancements in its scalability, speed, and customer support in specific regions.

What are Sysdig Secure's key features?

Runtime Security: Monitors and protects containerized and cloud environments in real time.
Falco Integration: Enhances threat detection with Falco's powerful rules engine.
Threat Detection: Identifies and alerts on suspicious activities and security threats.
Vulnerability Scanning: Assesses applications and infrastructure for potential vulnerabilities.

What benefits should users expect from Sysdig Secure?

Enhanced Security Posture: Comprehensive threat visibility and rapid response capabilities.
Improved Efficiency: Reduced alert fatigue by prioritizing critical vulnerabilities.
Compliance Support: Streamlined processes for meeting security standards and regulations.
Cloud Integration: Seamless compatibility with cloud providers like AWS and GCP.

Industries benefit by employing Sysdig Secure for managing runtime workloads and ensuring compliance within cloud environments. Its effectiveness in monitoring clusters on AWS, GCP, and securing CI/CD pipelines makes it essential for companies optimizing their cloud and container security strategies.

Sysdig

Zscaler Zero Trust Exchange enhances security with seamless cloud-based connectivity and VPN-less operation, offering integration with multiple identity providers and advanced security features, suitable for remote work environments.

Zscaler Zero Trust Exchange provides secure, adaptive connectivity without traditional VPNs, allowing organizations to replace legacy systems and bolster remote work security. The platform offers cloud-based protection, single sign-on, dynamic URL categorization, and scalable solutions. While advanced security features like DLP and threat protection enhance data protection, users may face issues with speed, connectivity, and some customization options. Integration challenges, latency due to multi-tenant hosting, reporting delays, and licensing costs require consideration. It supports secure internet access and private application security, ensuring traffic control and data compliance.

What are the key features of Zscaler Zero Trust Exchange?

VPN-less Connectivity: Enables secure remote access without traditional VPNs.
Cloud-based Security: Offers scalable protection utilizing cloud infrastructure.
Single Sign-On: Integrates with multiple identity providers for streamlined access.
Dynamic URL Categorization: Provides real-time URL filtering to enhance security.
Advanced Threat Protection: Detects and mitigates sophisticated threats effectively.
Customizable Policies: Allows tailored security protocols to fit unique requirements.
Comprehensive DLP: Protects sensitive data through robust data loss prevention.
Integration Capabilities: Connects seamlessly with cloud services and applications.

What are the benefits of using Zscaler Zero Trust Exchange?

Enhanced Security: Delivers consistent protection regardless of user location.
Improved Compliance: Ensures adherence to data protection regulations.
Streamlined Access: Simplifies connectivity to private and cloud applications.
Scalability: Supports expanding organizational demands with cloud scalability.
Real-time Visibility: Provides instant insights into security incidents and network traffic.

Zscaler Zero Trust Exchange is deployed across industries to secure remote access and enforce zero trust principles. Organizations in finance, healthcare, and technology sectors utilize it for secure internet access and visibility into cloud applications, enhancing performance and compliance in dynamic environments.

Zscaler

Sample Customers

Information Not Available

SAP Concur, Goldman Sachs, Worldpay, Experian, BigCommerce, Arkose Labs, Calendly, Noteable, Bloomreach. More here: https://sysdig.com/customers/

Siemens, AutoNation, GE, NOV

Buyer's Guide

Sysdig Secure vs. Zscaler Zero Trust Exchange Platform

July 2025

Free Report: Sysdig Secure vs. Zscaler Zero Trust Exchange Platform

Find out what your peers are saying about Sysdig Secure vs. Zscaler Zero Trust Exchange Platform and other solutions. Updated: July 2025.

DOWNLOAD NOW

896,034 professionals have used our research since 2012.

See our Sysdig Secure vs. Zscaler Zero Trust Exchange Platform report.

We monitor all Cloud-Native Application Protection Platforms (CNAPP) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.