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Guardian vs SignServer by Keyfactor comparison

The compared Spectrum Labs and Keyfactor solutions aren't in the same category. Spectrum Labs is ranked #63 in AWSM , and holds a 0.2% mindshare in the category. Keyfactor is ranked #59 in EAS , and holds a 0.3% mindshare.
Guardian
  • 476 Views
  • 252 Comparison Views
SignServer by Keyfactor
  • 206 Views
  • 49 Comparison Views

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

Guardian
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
AWS Marketplace (63rd)
SignServer by Keyfactor
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
eSignature (Electronic Signature) (59th)
 

Mindshare comparison

Guardian and SignServer by Keyfactor aren’t in the same category and serve different purposes. Guardian is designed for AWS Marketplace and holds a mindshare of 0.2%, down 1.2% compared to last year.
SignServer by Keyfactor, on the other hand, focuses on eSignature (Electronic Signature), holds 0.3% mindshare, down 0.4% since last year.
AWS Marketplace Mindshare Distribution
ProductMindshare (%)
Guardian0.2%
Stardog Enterprise Knowledge Graph Platform1.0%
CTG Cross-Border VPC Connection (Asia Pacific:HongKong-China:Beijing)0.9%
Other97.9%
AWS Marketplace
eSignature (Electronic Signature) Mindshare Distribution
ProductMindshare (%)
SignServer by Keyfactor0.3%
DocuSign18.5%
Adobe Sign7.4%
Other73.8%
eSignature (Electronic Signature)
 

Top Industries

By visitors reading reviews
Construction Company
30%
Insurance Company
30%
Comms Service Provider
10%
Healthcare Company
7%
Construction Company
49%
Healthcare Company
9%
Manufacturing Company
7%
Transportation Company
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Comparisons

No data available
DocuSign vs SignServer by Keyfactor Logo
DocuSign vs SignServer by Keyfactor
Compared 100% of the time
More SignServer by Keyfactor Competitors
 

Product Reports

No data available
Buyer's Guide
eSignature (Electronic Signature)
March 2026
SignServer by Keyfactor reportDownload SignServer by Keyfactor product report
 

Overview

Guardian's powerful features help moderation teams scale the effectiveness coverage and quality of their content moderation efforts.

Spectrum Labs

Enable high performance digital signing for code, documents, and more.
Trust nothing, sign and verify everything. SignServer Enterprise is a powerful digital signing engine, making it easy for teams to automate signing workflows and support all of their signing formats and use cases.

Keyfactor
 

Sample Customers

Information Not Available
Siemens, Truepic, Swisscom, Diebold Nixdorf, Telenor

We monitor all AWS Marketplace 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.