This Florida airport was the only one of 144 to record a perfect score for website cybersecurity

Summary:
Southwest Florida International Airport has been ranked as the most secure airport website in America, earning a perfect 100 out of 100 in a cybersecurity study of 144 airports. St. Pete-Clearwater, Fort Lauderdale, Miami, and Orlando Sanford also ranked among Florida’s top five, while Orlando International scored significantly lower.

New data has revealed that Southwest Florida International Airport has the most secure website of all 144 of America’s small, medium, and large hub airports. 

Anti-detect browser GoLogin tested website security for all 144 of America's small, medium, and large hub airports by rating each airport website's settings across four key cybersecurity factors: HTTP security headers, email authentication settings, Secure Sockets Layer (SSL) security, and Domain Name System Security Extensions (DNSSEC) settings. These factors were weighted according to how much damage could be done through lax security in those settings. 

Each airport was given a grade for each metric from A+ or Pass, to 0 or Fail, then these grades were converted to scores out of 100. The scores were combined with the weightings for each metric to give a weighted security score out of 100. This security score was then used to rank the airports. 

The top airports in Florida ranked by the weighted security score for four aspects of website security

Southwest Florida International Airport had the most secure website among all airports in America, scoring a perfect 100 out of 100 for website security. No other airport in the study had such rigorous security settings for its website.

St. Pete-Clearwater International Airport was second in Florida and tied for sixth place nationally, with a score of 82.3 out of 100. The airport’s website scored an A+ for email authentication, A's for security headers and SSL security, and a Fail for DNSSEC. The two other airports St. Pete-Clearwater International tied with nationally were Boston Logan International Airport in Massachusetts and Tucson International Airport in Arizona.

Fort Lauderdale–Hollywood International Airport ranked seventh in America and third in the Sunshine State. Despite not supporting DNSSEC, the airport still scored 81 out of 100 for website security thanks to grades of A- to A+ in the three other factors. 

Miami International Airport was fourth in Florida and tied for 21st place nationally. Miami International’s score of 68.5 out of 100 resulted from an A+ in SSL security, an A for security headers, a D for email authentication settings, and a Fail for DNSSEC support.

Orlando Sanford International Airport rounded out Florida’s top five airports for website security and placed 23rd nationally. Orlando Sanford International earned an A for security header settings, an A- for SSL security, a D for email security, and a Fail for DNSSEC, resulting in a score of 66 out of 100. This was 17 points better than the airport’s larger neighbor Orlando International Airport, which only scored 49 out of 100 for website security, with its biggest point deduction coming from scoring 0 for email authentication.

Key West International Airport tied in last place, with the study's lowest score of 26 out of 100 for website security. It tied with Antonio B. Won Pat International Airport, Guam, and Norfolk International Airport, Virginia, with all three airports recording the study's second-lowest score for SSL security and the study's lowest recorded scores for the three other factors.

The 10 airports in the United States with the best weighted score out of 100 for website security

The airports with the second-most secure website in the country were Manchester-Boston Regional Airport, New Hampshire, and Richmond International Airport, Virginia, with the two airports scoring 97.3 out of 100 for website security. The two airports missed out on a perfect score due to having security header and SSL settings that increase the risk of attacks that use malicious redirects and data interception. 

Charlotte Douglas International Airport, North Carolina, ranked third nationally with 86.5 out of 100 for website security. It was also the highest-ranked large hub airport. Despite perfect scores for SSL security and DNSSEC, its security header grade was just a B, and its email authentication settings earned a B-.

El Paso International Airport, Texas, was fourth overall for website security, scoring 85 out of 100. El Paso International had perfect scores in all factors except for security headers, in which it only managed a D.

Philadelphia International Airport, Pennsylvania, ranked fifth. The airport’s score of 83.5 out of 100 came from perfect scores for SSL and DNSSEC, an A for security headers, and a D for email authentication.

Eugene Stepnov, Head of Marketing at GoLogin, commented on the findings:

“Southwest Florida International showed the rest of the country how it’s done when it comes to website security, with the study identifying no vulnerabilities on its website. It was one of just 11 airports to support DNSSEC, and one of only three airports to score an A+ in security header settings. Its performance shows that an airport doesn’t need to be one of the country’s largest to do a stellar job at prioritizing the security of traveler data. While some of the cybersecurity best practices employed by Southwest Florida International might take a bit of work to implement, some vulnerabilities like security header settings could be easily patched with a few lines of code on the server. 

“The data also shows that most of America’s major airports have some kind of cybersecurity vulnerability, and for some airports these are absolutely glaring. For example, 1 in 6 of the 144 airports in the study scored 0 for email authentication settings, including some of the busiest airports in the country like Orlando International, JFK International, and LaGuardia Airport. This means hackers have a much easier time of spoofing the domain they are sending an email from to mimic an official airport’s domain, which then means travelers could be exposed to convincing phishing attacks from what appear to be official domains. It would just take a few cancellations at an airport and a conveniently timed ‘Your flight was canceled, click this link to claim your refund’ phishing email for a weary traveler to become the latest victim of fraud. 

“Travelers can protect themselves by not clicking any links in any email whose source they are not 100% sure of, and checking where that link is sending them before clicking on ones they are sure of. Using the most up-to-date web browsers and preventing unknown scripts from running while browsing the web will also mitigate the risks posed by websites that are more vulnerable to these kinds of attacks.”

Key Points:

• Southwest Florida International earned a perfect 100 for website security.
• St. Pete-Clearwater ranked sixth nationally with an 82.3 score.
• Fort Lauderdale-Hollywood ranked seventh nationally at 81.
• Orlando Sanford scored 66, while Orlando International scored just 49.
• The study highlights widespread cybersecurity vulnerabilities at U.S. airports.

Sources: 

Security Headers 

SSL Labs 

MXToolbox DMARC

DNSViz / Verisign DNSSEC Debugger

Data gathered from July 29 to July 30, 2026.

Methodology: 

The study ranks all 144 current U.S. hub airports based on how secure their websites are. The FAA designates airports as large, medium, or small hubs depending on their proportion of all commercial enplanements in the United States. Large hub airports receive more than 1% of total commercial enplanements in the United States, medium hubs receive between 0.25% and 1%, and small hubs receive between 0.05% and 0.25%.

Airport websites were evaluated using four criteria and each criterion was given a weighting relative to how dangerous an attack using that vector could be for a regular user. These were as follows:

Each website was given a grade for these criteria using the tools outlined, ranging from A+ or Pass, to 0 or Fail. These grades were converted to scores out of 100, multiplied by their respective weightings, then combined. This gave each website its weighted security score out of 100. Airport websites were then ranked by their weighted security score.

For further context, scores were averaged for all hub airports and airports within each hub size tier.

Notes: Four websites had to be graded using a TLS probe due to their SSL Labs scans failing. SSL scores for the affected sites were assigned by matching SSL Labs’ methodology. The affected airports were Harry Reid International Airport (LAS), William P. Hobby Airport (HOU), George Bush Intercontinental Airport (IAH), and Pensacola International Airport (PNS).

Some websites shared a host website, so the host site’s scores resulted in a tie for the airports in question.

All scores were rounded to one decimal place.

The full dataset is available on request.

Additional tables:

Scores out of 100 for each assigned grade

The average of factor scores and weighted security scores for airports of each hub size

Note: these scores are the mean of all scores by hub size and criterion, and display the rough distribution of scores by tier. The weighted security scores have not been calculated like regular airports.

The percentage of hub airports in each tier with strong performances in each factor

The percentage of hub airports in each tier with weak performances in each factor

Hub airports in Florida ranked by the weighted security score for four aspects of website security