Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. The largest vendors in SSL certificate providers
cannot hold places 1 to 3. Places 1 to 3 go to challengers, vendors outside the best-known brands in a category,
wherever the category has them; the established names follow from place 4 in their ranked order. How it works: placement disclosure ·
editorial process.
The 17 tools, reviewed
#1 ZeroSSL
Austrian certificate authority with a free tier and paid plans · Austria · zerossl.com
Free tier ACME REST API
ZeroSSL takes first place because it covers the whole path from a free certificate to a paid plan inside one console, and it tells you who is behind it: ZeroSSL GmbH, with an Austrian commercial register number on its imprint page.
- Pricing: Tiered subscription. Free plan at $0 with three 90-day certificates. Free plan: free plan.
- Best for: Small teams starting free, upgrading later
- Strengths: Free 90-day certificates; ACME automation; REST API access.
Where it falls short
The free plan stops at three certificates and one Protect scan entry, so a company with ten hostnames lands on a paid tier fast. Plans are subscriptions rather than per-certificate purchases, which makes a single annual certificate awkward to price.
Wrong for
A buyer who needs a verified company name in the certificate, a published warranty figure or a phone line should look at Actalis or Sectigo.
Visit ZeroSSL →
#2 Actalis
Italian certificate authority with published euro prices · Italy · actalis.com
Italy DV, OV, EV Aruba Group
Actalis is the plainest answer for a company that must buy from a European authority and wants to see the price before talking to anyone.
- Pricing: Per certificate / year. Per certificate per year, net of VAT: DV from EUR 50.00, OV from EUR 300.00, EV from EUR 450.00, each for one year. Free plan: none.
- Best for: Buyers wanting an EU-based paid authority
- Strengths: Domain validation certificates; Organization validation certificates; Extended validation certificates.
Where it falls short
Domain validation at EUR 50 plus VAT costs far more than a free ACME certificate or a reseller's entry price, and the quoted figures are net of VAT, so the real invoice is higher.
Wrong for
A team that only needs the padlock on a few hostnames is overpaying and should use Let's Encrypt or ZeroSSL.
Visit Actalis →
#3 Gandi
French registrar reselling partner-CA certificates · France · gandi.net
France Registrar Reseller
Gandi earns third place for buyers who think of certificates as an add-on to the domain, not a separate vendor relationship.
- Pricing: Per certificate / year. Per certificate per year, taxes excluded: Select Standard from EUR 24.99, Select Pro from EUR 44.99, Select Business from EUR 249.99. Free plan: none.
- Best for: Teams already holding domains at Gandi
- Strengths: Automated certificate management; Single address and wildcard certificates; Transaction warranties from $10,000 to $1,500,000.
Where it falls short
Gandi sells certificates from partner authorities, so the entity trusted by the browser is not Gandi. Prices are shown excluding the 20% French VAT.
Wrong for
A company with domains at another registrar gains little from moving them for a certificate.
Visit Gandi →
#4 Let's Encrypt
Free automated nonprofit certificate authority · United States · letsencrypt.org
Free ACME Nonprofit
Let's Encrypt is the default for anyone who can run an ACME client, and its own FAQ states plainly that there is no fee for certificates.
- Pricing: Free. No fee for certificates. Free plan: free plan.
- Best for: Anyone needing free DV certificates over ACME
- Strengths: Free automated TLS certificates; ACME protocol; 90-day default certificate validity.
Where it falls short
Let's Encrypt issues domain validation only, so there is no organization or extended validation and no company name in the certificate.
Wrong for
Companies that must show a verified organization name, hold a contract with a support line or need a dashboard for hundreds of certificates should buy from Actalis, Sectigo or DigiCert.
Visit Let's Encrypt →
#5 SSL.com
US authority for TLS, signing and private PKI · United States · ssl.com
Houston TLS and signing ACME
SSL.com is a sensible mid-market pick for a company that needs more than TLS.
- Pricing: Per certificate / year. Per certificate per year: single domain from $36.75, multi-domain from $141.60, with price rising by validation level. Free plan: none.
- Best for: Buyers wanting TLS plus code signing
- Strengths: Single domain, wildcard and multi-domain certificates; ACME certificate lifecycle management; Extended validation certificates.
Where it falls short
Prices climb with validation level, and enterprise and PKI products route through a sales contact rather than a published price.
Wrong for
A buyer who wants only free automated DV is paying for features they will not use.
Visit SSL.com →
#6 Certum
Polish certificate authority with DV, OV and EV · Poland · certum.eu
Poland DV, OV, EV Warranty
Certum is a European authority that states its terms clearly. The SSL page gives validation times for each level: about an hour for domain validation, one to five days for organization validation and one to seven for extended validation.
- Pricing: Per certificate / year. Per certificate. Free plan: none.
- Best for: EU buyers wanting stated warranty tiers
- Strengths: Domain validation, about one hour; Organization validation, one to five days; Extended validation, one to seven days.
Where it falls short
We could not capture its prices: the shop page we guessed returned an error, so the cost per tier is unconfirmed here.
Wrong for
Teams that want to compare euro prices at a glance should start with Actalis or Gandi, who publish them.
Visit Certum →
#7 HARICA
Greek academic-network certificate authority · Greece · harica.gr
Greece Academic Server and email
HARICA is the odd one out in this list, and that is the point of including it.
- Pricing: Per certificate / year. Per certificate per year; server certificates from EUR 36 a year. Free plan: none.
- Best for: Institutions wanting a Greek academic CA
- Strengths: Server (TLS) certificates; Email (S/MIME) certificates; Reseller partner program.
Where it falls short
Its own about page says it is built for Greek academic and research institutions, and the product range on the pages we opened is narrower than a commercial authority's.
Wrong for
Enterprises that need organization workflows, a large partner ecosystem or phone support in several languages should use a commercial authority such as DigiCert or Sectigo.
Visit HARICA →
#8 Trustico
Storefront for Sectigo-issued and own-brand certificates · Australia · trustico.com
Reseller Australia Low price
Trustico is the cheapest way we found to buy a Sectigo-issued certificate with a human storefront: the collections page shows PositiveSSL DV from $19.00 and Trustico's own DV from $24.00, with OV, wildcard and multi-domain products above them.
- Pricing: Per certificate / year. Per certificate per year in several currencies: PositiveSSL DV from $19.00 USD (Sectigo CA), Trustico DV from $24.00 USD. Free plan: none.
- Best for: Cost-led buyers of single certificates
- Strengths: DV, OV and wildcard certificates; Multi-domain certificates; Certificate as a Service.
Where it falls short
The contact page says telephone technical support is limited, and it does not take payments by post. As a reseller, issuance, validation timing and trust rest on the underlying authority, and Sectigo's own entry price is much higher, so the discount depends on Trustico's contract.
Wrong for
Companies that need a direct contract with the authority, or a management platform for many certificates, should buy from the authority itself.
Visit Trustico →
#9 GoGetSSL
DigiCert-owned reseller of multi-brand certificates · Ireland · gogetssl.com
Reseller DigiCert group ACME CaaS
GoGetSSL is a wide shelf at low prices. The DV page shows certificates from $16.00 a year, the ACME page lists Sectigo's ACME certificate-as-a-service from $25 a year, and Flex multi-domain certificates start at $44.00.
- Pricing: Per certificate / year. Per certificate per year in USD: DV from $16.00, ACME DV (Sectigo) from $25, Flex from $44.00. Free plan: none.
- Best for: Price-led buyers of DV and Flex certificates
- Strengths: DV, OV and EV certificates; Wildcard and multi-domain (Flex) certificates; ACME certificate automation.
Where it falls short
The site carries the copyright of DigiCert Ireland Limited, and its pages do not state an address that we could verify.
Wrong for
A buyer who wants a direct contract with DigiCert, with the CertCentral portal and 24x5 support, should buy from DigiCert.
Visit GoGetSSL →
#10 SSL2BUY
Multi-brand SSL reseller with ACME and eIDAS products · Not stated by the vendor · ssl2buy.com
Reseller ACME CaaS eIDAS
SSL2BUY covers a lot of ground for a reseller. Its homepage lists multi-domain, wildcard and flex certificates, an ACME certificate-as-a-service line, eIDAS certificates and Common Mark certificates, which start at $650.00 a year.
- Pricing: Per certificate / year. Per certificate per year in USD. Free plan: none.
- Best for: Buyers shopping across several authorities
- Strengths: Multi-domain, wildcard and flex SSL; ACME certificate as a service; eIDAS certificates.
Where it falls short
We did not capture an entry price for ordinary DV, and the legal entity and office location are not stated on the pages we opened, so we cannot say who the contract is with.
Wrong for
Buyers who need a named company, a published address and a visible entry price before they trust a storefront should start with Actalis, Gandi or SSL.com.
Visit SSL2BUY →
#11 Certera
Low-price DV, wildcard and multi-domain SSL storefront · Not stated by the vendor · certera.com
Low price Reseller DV and wildcard
Certera wins on sticker price alone. Its homepage lists DV certificates from $3.99 a year, wildcard from $39.99 and multi-domain from $13.99, which is the lowest set of published figures in this ranking.
- Pricing: Per certificate / year. Per certificate per year in USD: DV from $3.99, wildcard from $39.99, multi-domain from $13.99, as shown on its homepage. Free plan: none.
- Best for: Buyers hunting the lowest list price
- Strengths: DV SSL issued within minutes; Wildcard SSL with unlimited sub-domains; Multi-domain (SAN) SSL.
Where it falls short
The prices are homepage list prices, and we did not check validation tiers above DV or the checkout totals.
Wrong for
Buyers who need a verifiable company with a published address, a warranty figure or an audit-friendly paper trail should pick an authority with those details, such as Actalis or SSL.com.
Visit Certera →
#12 Sectigo
Commercial authority with certificate management for enterprises · United Kingdom · sectigo.com
Commercial CA Enterprise Certificate Manager
Sectigo is a heavyweight: a commercial authority whose certificates also reach buyers through resellers such as Trustico and GoGetSSL.
- Pricing: Per certificate / year. Per certificate per year, from $110 for a one-year single-domain DV certificate. Free plan: none.
- Best for: Enterprises and resellers needing a managed platform
- Strengths: DV, OV and EV TLS certificates; Wildcard and multi-domain certificates; S/MIME email certificates.
Where it falls short
The $110 entry price is far above what the same Sectigo-issued product costs at resellers such as Trustico, and enterprise tooling is behind a sales call.
Wrong for
A company with a handful of hostnames is overpaying and should look at ZeroSSL, Actalis or a reseller.
Visit Sectigo →
#13 GlobalSign
Commercial authority with ACME and Atlas certificate management · Not stated by the vendor · globalsign.com
Commercial CA ACME Discovery
GlobalSign suits the buyer whose problem is the inventory, not the single certificate.
- Pricing: Tiered plans. Tiered plans by validation level and number of domains, in GBP, EUR, USD, JPY, INR and other currencies. Free plan: free trial.
- Best for: Mid-size and large estates needing discovery
- Strengths: Domain, organization and EV SSL; ACME certificate automation; Certificate lifecycle management.
Where it falls short
We could not capture its prices from the pages we opened, and the headquarters and legal address are not stated there, so the table above shows country unstated.
Wrong for
A team with a few hostnames and no inventory problem should use ZeroSSL or Let's Encrypt.
Visit GlobalSign →
#14 DigiCert
Commercial authority with CertCentral subscriptions · United States · digicert.com
Commercial CA Subscription CertCentral
DigiCert is the benchmark paid authority, and its position is deserved for a company that treats certificates as infrastructure.
- Pricing: Subscription. 12-month auto-renewing subscriptions from $372.00, and per-domain monthly pricing from $24 a month for a standard domain, shown in USD. Free plan: none.
- Best for: Enterprises with many certificates
- Strengths: Unlimited certificate issuance in subscription; Free ACME automation; CertCentral management portal.
Where it falls short
The subscription auto-renews every twelve months until cancelled, so budget owners must watch the date.
Wrong for
A company with a few sites should not pay $372 a year when ZeroSSL, Actalis or a reseller costs a fraction.
Visit DigiCert →
#15 Cloudflare
Free automatic TLS bundled with the Cloudflare service · United States · cloudflare.com
Free Bundled Automatic
For a site already served through Cloudflare, the certificate question mostly disappears. The product page describes free TLS certificates that are issued and renewed automatically, with no purchase flow and no calendar entry.
- Pricing: Free. Free TLS certificates come with the Cloudflare service, issued and renewed automatically. Free plan: free plan.
- Best for: Sites already on Cloudflare's network
- Strengths: Free TLS certificates; Automatic issuance and renewal; Free SSL/TLS certificate options.
Where it falls short
The certificates come as part of Cloudflare's service, and the page we read describes them as tied to domains on its network.
Wrong for
Companies that terminate TLS on their own servers, run hostnames that must work without Cloudflare, or need a verified company name should buy from an authority and keep ACME working independently.
Visit Cloudflare →
#16 AWS Certificate Manager
AWS service issuing and managing public TLS certificates · United States · aws.amazon.com
AWS Free Integrated
If every hostname you serve sits behind an AWS load balancer or CloudFront, AWS Certificate Manager is the least effort: its pricing page says certificates for integrated services are issued at no cost, and renewal is handled for you.
- Pricing: Free inside AWS. Free for certificates used with integrated AWS services. Free plan: free plan.
- Best for: Teams running everything on AWS
- Strengths: Public certificates for AWS-integrated services; Certificates for use outside AWS services; Centralized certificate management.
Where it falls short
The free certificates stay inside AWS, so they do not help with servers elsewhere. Using them outside integrated services is charged.
Wrong for
Teams with servers on other clouds, on premises or at a host should use an ACME authority that works everywhere.
Visit AWS Certificate Manager →
#17 Google Trust Services
Google's public CA, ordered through Google Cloud · United States · pki.goog
Google Cloud Free Public CA
Google Trust Services is the public authority run by Google, and it is the most platform-bound entry on this list. The Certificate Manager pricing page says certificates from the Public CA are free of charge, and the first 0 to 100 certificates a month cost $0.00 for the manager itself.
- Pricing: Free inside Google Cloud. Public CA certificates are free of charge. Free plan: free plan.
- Best for: Teams already on Google Cloud
- Strengths: Public CA certificates; Certificate Manager integration; Public CA tutorial in Cloud docs.
Where it falls short
It needs a Google Cloud project to order certificates, and it is not a standalone SSL storefront with a price list and a checkout.
Wrong for
Buyers who are not on Google Cloud should use Let's Encrypt or ZeroSSL.
Visit Google Trust Services →
Questions and answers
What is the best SSL certificate provider in 2026?
ZeroSSL ranks first of 17, best for small teams starting free, upgrading later. Actalis is second (buyers wanting an EU-based paid authority) and Gandi third (teams already holding domains at Gandi). Places 1 to 3 go to challengers, vendors outside the best-known brands, wherever the category has them.
Is a free SSL certificate as secure as a paid one?
At domain validation level the encryption is the same: the browser shows the same padlock and the same cipher strength, whichever authority signed it.
What is the difference between DV, OV and EV certificates?
Domain validation (DV) proves only that the requester controls the domain, and it can be automated in minutes. Organization validation (OV) adds a check of the company's legal existence, and the name appears in the certificate details.
Do I need a wildcard certificate?
Only if you run many subdomains that change often and want one certificate to cover them.
How often must certificates be renewed now?
More often than a few years ago, and the interval is still shrinking.
Can I use a certificate from my cloud provider outside that cloud?
Usually not for the free bundled ones. AWS Certificate Manager issues public certificates at no cost for integrated AWS services such as load balancers and CloudFront, and certificates used outside those services are charged.
Is a reseller like Trustico or GoGetSSL safe to buy from?
Both are legitimate storefronts selling certificates issued by established authorities: Trustico lists PositiveSSL from Sectigo from $19 and its own branded certificates from $24, and GoGetSSL sells DigiCert, Sectigo and GeoTrust products from $16 a year.
Which providers publish prices in euros?
Of the providers we reviewed, Actalis quotes euros net of VAT (DV EUR 50, OV EUR 300, EV EUR 450), Gandi lists EUR 24.99, EUR 44.99 and EUR 249.99 a year for its Select tiers excluding taxes, and HARICA starts at EUR 36 a year for server certificates.
What does a certificate warranty actually cover?
A warranty is the authority's stated liability if a certificate is mis-issued and a relying party suffers a loss.
What should I do if the free authority I rely on has an outage?
Configure two authorities in your ACME client or automation, so renewal falls back if one is down.
Do I need to buy a certificate at all if I use a CDN or hosting platform?
Often not. Cloudflare issues free TLS certificates automatically for domains it fronts, and AWS Certificate Manager does the same for integrated AWS services. Most managed hosts and website builders do likewise.
