Their certificate was revoked (by their certificate authority, Actalis, part of the Aruba Group) on July 6. Presumably the CA was pressured to revoke it by the Italian and/or US government, and they will get a new certificate from someone else soon.

There is a hexbear thread here about it; afaict there doesn't appear to yet be any reporting about it. But in the CRL you can see it was revoked July 6:

$ curl -s http://crl15.actalis.it/Repository/tls-subca-rsa-dv-2025/getLastCRL | openssl crl -noout -text |grep -A 4 02295E6BB25717C4652321F4ED9D2B29
    Serial Number: 02295E6BB25717C4652321F4ED9D2B29
        Revocation Date: Jul  6 13:54:09 2026 GMT
        CRL entry extensions:
            X509v3 CRL Reason Code: 
                Privilege Withdrawn

The reason "Privilege Withdrawn" means it was the CA's decision rather than their own.

Because certificate revocation has never worked very well, many people can still access it (until their browser fetches the certificate revocation list, or checks OCSP, does some newfangled proprietary other thing i don't understand...).

Iran has issued a firm warning that it will not back down from its management of the Strait of Hormuz and is prepared to fight to maintain control over the strategic waterway, an informed security source told Press TV on Wednesday.

The source revealed that developments over the past 48 hours have solidified Tehran's resolve, with a new military and strategic doctrine now in place.

According to the source, Iran's updated strategy dictates that in the event of any fresh attack on Iranian soil or interests, the Islamic Republic will respond with overwhelming force.

The source elaborated on Iran's new retaliatory framework, stating that following any strike against Iran, two immediate actions will be taken: first, the Strait of Hormuz will be completely closed to all maritime traffic; and second, Iran will strike enemy targets at a ratio of at least two to one, meaning that for every Iranian target hit, at least two enemy targets will be struck in return.

"The memorandum of understanding signed on this matter clearly states that Iran will reopen the Strait in accordance with its own arrangements. Therefore, Iran will not permit the establishment of any new route outside the framework of its own arrangements," the source said.

The source also addressed recent threats made by US President Donald Trump, delivering a blunt message to Washington.

"Any threat will receive a powerful response. Iran does not distinguish between the United States and its partners in the region,” the source told Press TV.

“Trump will gain nothing from these recent threats, but he will certainly lose both the Strait of Hormuz and the negotiations over a final agreement. The choice is now his."

The warning comes amid rising tensions in the Persian Gulf region, after the US military carried out a fresh round of illegal and unprovoked strikes against Iran’s coastal areas early on Wednesday.

US launched military strikes on a number of coastal bases and non-military stations in Iran's southern Hormozgan province and Mahshahr, which openly violated the ceasefire.

In response, the Islamic Revolution Guards Corps (IRGC) struck 85 US military targets in Bahrain and Kuwait with missiles and drones in an initial response to the American aggression.

The IRGC said the strikes hit facilities at Port Salman, the US Fifth Fleet's area in Bahrain, and Ali Al Salem Air Base in Kuwait. It also announced the downing of an MQ-9 drone, saying the aircraft attempted to interfere with the operation before it was shot down.

In a statement earlier on Wednesday, Iran’s Khatam al-Anbiya Central Headquarters said any source of support for the “aggressor US army” will be considered a legitimate target for Iranian armed forces.

“The source of any support for the aggressor US army to violate the sovereignty and territory of Islamic Iran will be a legitimate target for the armed forces,” the top military command center warned.

It said that the only safe route for commercial ships and oil tankers in the Strait of Hormuz is the path designated by Iran, and that Tehran will not allow any interference in the management of the Strait.

Iranian parliament speaker and lead negotiator Mohammad Baqer Qalibaf also slammed the US for committing major violations of the Iran-US memorandum of understanding (MoU), stressing that Washington’s “era of bullying and extortion” is over.

“Major MoU violations by the US: [1.] Violating Iranian adjustments in the Strait,
[2.] Reinstating oil sanctions,
[3.] Attacks on southern Iran,
[4.] Continued Zionist aggression on Lebanon,” he said.

“The era of bullying and extortion is over. It leads nowhere. We don’t fold.”

Actalis, who are Italian, but probably acting on orders from the USA in this case, has revoked the certificate. (Could also be the site got hacked and Actalis is doing their job correctly, but I subscribe to the censorship theory personally).

You can use wget to download the site, or curl if you just want the text. There's also presstv.co.uk which works as a mirror.